Game 1:  Lordachescu vs Portisch

0.
@Q0
[{F:B}{B:rnbqkbnr/pppppppp/32/PPPPPPPP/RNBQKBNR WHITE}
Introduction:  You have the Black pieces. Your partner for game one is the Hungarian Grandmaster Lajos Portisch.  

Born in 1937, Portisch was Champion of Hungary many times and took part in a number of qualifying matches for the World Championship. Playing the White pieces is your opponent, the Moldova Grandmaster, Viorel Iordachescu. The setting is round nine of the Linares Open Tournament 2000 in Spain. Iordachescu is tied for the lead and Portisch is trying to overhaul him. The fighting Sicilian Defense is the opening of choice and both sides go all out for the win. 

Jumping ahead, Portisch does win this game, makes a draw in the last round (round 10) and goes on to tie for 1st and 2nd places with the Russian Grandmaster Sergey Dolmatov. Iordachescu, who got off to such a great start, is left behind.]

1.
@Q1
[{F:B}{B:rnbqkbnr/pppppppp/32/PPPPPPPP/RNBQKBNR WHITE}
{S:e2e4}{D:500}{S:c7c5}{D:500}{S:g1f3}{D:500}{S:e7e6}{D:500}{S:d2d4}{D:500}{S:c5d4}{D:500}
{S:f3d4}{D:500}{S:a7a6}{D:500}{S:b1c3}{D:500}{S:d8c7}{D:500}{S:f1d3}{D:500}{S:g8f6}{D:500}
{S:f2f4}{D:500}{S:d7d6}{D:500}{S:d1f3}{D:500}{S:f8e7}{D:500}{S:g2g4}{D:500}{S:b7b5}{D:500}
{S:g4g5}{D:500}{S:f6d7}{D:500}{S:a2a3}{D:500}{S:b8c6}{D:500}{S:d4c6}
{QM:Select Black's 12th move.;
12...Bb7:Incorrect. The correct answer was Qxc6.:-2;
12...Qxc6:Correct.:1;
12...0-0:Incorrect. The correct answer was Qxc6.:-3}]

2.
@Q2
[{D:1000}{S:c7c6}{A:Bc7c6}{D:1000}{S:c1e3}{A:Wc1e3}{D:2000}{R}
{QM:Select Black's 13th move.;
13...a5:Incorrect. The correct answer was Rb8.:-1;
13...Rb8:Correct.:5;
13...Bb7:Incorrect. The correct answer was Rb8.:2;
13...Nb6:Incorrect. The correct answer was Rb8.:2;
13...Nc5:Incorrect. The correct answer was Rb8.:3;
13...d5:Incorrect. The correct answer was Rb8.:-1;
13...e5:Incorrect. The correct answer was Rb8.:1;
13...0-0:Incorrect. The correct answer was Rb8.:2;
13...h6:Incorrect. The correct answer was Rb8.:2}]

3.
@Q3
[{R}{D:1000}{S:a8b8}{A:Ba8b8}{D:1000}{S:c3e2}{A:Wc3e2}{D:2000}{R}
{QM:Select Black's 14th move.;
14...a5:Incorrect. The correct answer was Nc5.:-1;
14...Bb7:Incorrect. The correct answer was Nc5.:1;
14...Nb6:Incorrect. The correct answer was Nc5.:2;
14...b4:Incorrect. The correct answer was Nc5.:1;
14...Nc5:Correct.:3;
14...d5:Incorrect. The correct answer was Nc5.:1;
14...e5:Incorrect. The correct answer was Nc5.:1;
14...f6:Incorrect. The correct answer was Nc5.:1;
14...0-0:Incorrect. The correct answer was Nc5.:1;
14...g6:Incorrect. The correct answer was Nc5.:1}]

4.
@Q4
[{R}{D:1000}{S:d7c5}{A:Bd7c5}{D:1000}{S:h2h4}{A:Wh2h4}{D:2000}{R}
{QM:Select Black's 15th move.;
15...a5:Incorrect. The correct answer was b4.:2;
15...b4:Correct.:4;
15...Na4:Incorrect. The correct answer was b4.:3;
15...Bb7:Incorrect. The correct answer was b4.:2;
15...Nxd3+:Incorrect. The correct answer was b4.:2;
15...Bd7:Incorrect. The correct answer was b4.:2;
15...Nxe4:Incorrect. The correct answer was b4.:-2;
15...f5:Incorrect. The correct answer was b4.:1;
15...0-0:Incorrect. The correct answer was b4.:1}]

5.
@Q5
[{R}{D:1000}{S:b5b4}{A:Bb5b4}{D:1000}{S:e2d4}{A:We2d4}{D:2000}{R}
{QM:Select Black's 16th move.;
16..bxa3:Incorrect. The correct answer was Qc7.:-4;
16...Qa4:Incorrect. The correct answer was Qc7.:1;
16...Qc7:Correct.:2;
16...Qb6:Incorrect. The correct answer was Qc7.:1;
16...Nxd3+:Incorrect. The correct answer was Qc7.:1}]

6.
@Q6
[{R}{D:1000}{S:c6c7}{A:Bc6c7}{D:1000}{S:e1g1}{A:We1g1}{S:h1f1}{A:Wh1f1}{D:2000}{R}
{QM:Select Black's 17th move.;
17...a5:Incorrect. The correct answer was bxa3.:1;
17...Na4:Incorrect. The correct answer was bxa3.:2;
17...bxa3:Correct.:4;
17...b3:Incorrect. The correct answer was bxa3.:2;
17...Nxd3:Incorrect. The correct answer was bxa3.:2;
17...0-0:Incorrect. The correct answer was bxa3.:2}]

7.
@Q7
[{R}{D:1000}{S:b4a3}{A:Bb4a3}{D:1000}{S:b2a3}{A:Wb2a3}{D:2000}{R}
{QM:Select Black's 18th move.;
18...a5:Incorrect. The correct answer was 0-0.:1;
18...Qa5:Incorrect. The correct answer was 0-0.:-1;
18...Na4:Incorrect. The correct answer was 0-0.:1;
18...Rb2:Incorrect. The correct answer was 0-0.:1;
18...Nxd3:Incorrect. The correct answer was 0-0.:1;
18...Bd7:Incorrect. The correct answer was 0-0.:1;
18...0-0:Correct.:3;
18...h5:Incorrect. The correct answer was 0-0.:1}]

8.
@Q8
[{R}{D:1000}{S:e8g8}{A:Be8g8}{S:h8f8}{A:Bh8f8}{D:1000}{S:f4f5}{A:Wf4f5}{D:2000}{R}
{QM:Select Black's 19th move.;
19...Rb2:Incorrect. The correct answer was e5.:1;
19...Nxd3:Incorrect. The correct answer was e5.:3;
19...d5:Incorrect. The correct answer was e5.:1;
19...e5:Correct.:4;
19...exf5:Incorrect. The correct answer was e5.:1;
19...f6:Incorrect. The correct answer was e5.:-1}]

9.
@Q9
[{R}{D:1000}{S:e6e5}{A:Be6e5}{D:1000}{S:d4e2}{A:Wd4e2}{D:2000}{R}
{QM:Select Black's 20th move.;
20...Bb7:Incorrect. The correct answer was Bd8.:1;
20...Nxd3:Incorrect. The correct answer was Bd8.:2;
20...Bd8:Correct.:5;
20...d5:Incorrect. The correct answer was Bd8.:-1;
20...f6:Incorrect. The correct answer was Bd8.:-1}]

10.
@Q10
[{R}{D:1000}{S:e7d8}{A:Be7d8}{D:1000}{S:e2g3}{A:We2g3}{D:2000}{R}
{QM:Select Black's 21st move.;
21...Rb2:Incorrect. The correct answer was Nxd3.:1;
21...Bb7:Incorrect. The correct answer was Nxd3.:1;
21...Nxd3:Correct.:4;
21...f6:Incorrect. The correct answer was Nxd3.:-1;
21...g6:Incorrect. The correct answer was Nxd3.:1}]

11.
@Q11
[{R}{D:1000}{S:c5d3}{A:Bc5d3}{D:1000}{S:c2d3}{A:Wc2d3}{D:2000}{R}
{QM:Select Black's 22nd move.;
22...Rb2:Incorrect. The correct answer was Qd7.:3;
22...Qc3:Incorrect. The correct answer was Qd7.:2;
22..Qc2:Incorrect. The correct answer was Qd7.:2;
22...Qd7:Correct.:5;
22...Re8:Incorrect. The correct answer was Qd7.:1}]

12.
@Q12
[{R}{D:1000}{S:c7d7}{A:Bc7d7}{D:1000}{S:h4h5}{A:Wh4h5}{D:2000}{R}
{QM:Select Black's 23rd move.;
23...Rb2:Incorrect. The correct answer was Rb3.:2;
23...Rb3:Correct.:4;
23...d5:Incorrect. The correct answer was Rb3.:1;
23...Bb6:Incorrect. The correct answer was Rb3.:2;
23...Ba5:Incorrect. The correct answer was Rb3.:1}]

13.
@Q13
[{R}{D:1000}{S:b8b3}{A:Bb8b3}{D:1000}{S:a1d1}{A:Wa1d1}{D:2000}{R}
{QM:Select Black's 24th move.;
24...a5:Correct.:5;
24...Rxa3:Incorrect. The correct answer was a5.:4;
24...Bb6:Incorrect. The correct answer was a5.:2;
24...d5:Incorrect. The correct answer was a5.:1;
24...Bxg5:Incorrect. The correct answer was a5.:-2}]

14.
@Q14
[{R}{D:1000}{S:a6a5}{A:Ba6a5}{D:1000}{S:d1d2}{A:Wd1d2}{D:2000}{R}
{QM:Select Black's 25th move.;
25...Ba6:Correct.:3;
25...Rxa3:Incorrect. The correct answer was Ba6.:2;
25...Qa4:Incorrect. The correct answer was Ba6.:1;
25...Bb7:Incorrect. The correct answer was Ba6.:2;
25...Qb5:Incorrect. The correct answer was Ba6.:1}]

15.
@Q15
[{R}{D:1000}{S:c8a6}{A:Bc8a6}{D:1000}{S:h5h6}{A:Wh5h6}{D:2000}{R}
{QM:Select Black's 26th move.;
26...Bxd3:Incorrect. The correct answer was g6.:1;
26...Rxd3:Incorrect. The correct answer was g6.:1;
26...f6:Incorrect. The correct answer was g6.:-1;
26...g6:Correct.:3;
26...gxh6:Incorrect. The correct answer was g6.:-1}]

16.
@Q16
[{R}{D:1000}{S:g7g6}{A:Bg7g6}{D:1000}{S:f5g6}{A:Wf5g6}{D:2000}{R}
{QM:Select Black's 27th move.;
27...Rxa3:Incorrect. The correct answer was hxg6.:-2;
27...Rxd3:Incorrect. The correct answer was hxg6.:-1;
27...Bxd3:Incorrect. The correct answer was hxg6.:-1;
27...fxg6:Incorrect. The correct answer was hxg6.:-5;
27...hxg6:Correct.:1}]

17.
@Q17
[{R}{D:1000}{S:h7g6}{A:Bh7g6}{D:1000}{S:h6h7}{A:Wh6h7}{D:2000}{R}
{QM:Select Black's 28th move.;
28...Kg7:Incorrect. The correct answer was Kh8.:-1;
28...Kxh7:Incorrect. The correct answer was Kh8.:-2;
28...Kh8:Correct.:3}]

18.
@Q18
[{R}{D:1000}{S:g8h8}{A:Bg8h8}{D:1000}{S:f3h1}{A:Wf3h1}{D:2000}{R}
{QM:Select Black's 29th move.;
29...Rxa3:Incorrect. The correct answer was Be7.:2;
29...Rxd3:Incorrect. The correct answer was Be7.:2;
29...Bxd3:Incorrect. The correct answer was Be7.:2;
29...Be7:Correct.:4;
29...Qg4:Incorrect. The correct answer was Be7.:3}]

19.
@Q19
[{R}{D:1000}{S:d8e7}{A:Bd8e7}{D:1000}{S:h1h6}{A:Wh1h6}{D:2000}{R}
{QM:Select Black's 30th move.;
30...Rxa3:Incorrect. The correct answer was Qg4.:1;
30...Rxd3:Incorrect. The correct answer was Qg4.:2;
30...Bxd3:Incorrect. The correct answer was Qg4.:2;
30...f6:Incorrect. The correct answer was Qg4.:-3;
30...Qg4:Correct.:4}]

20.
@Q20
[{R}{D:1000}{S:d7g4}{A:Bd7g4}{D:1000}{S:d2g2}{A:Wd2g2}{D:2000}{R}
{QM:Select Black's 31st move.;
31...Rxa3:Incorrect. The correct answer was Rb2.:-3;
31...Rb2:Correct.:6;
31...Rxd3:Incorrect. The correct answer was Rb2.:-3;
31...Bxd3:Incorrect. The correct answer was Rb2.:-2;
31...Qh5:Incorrect. The correct answer was Rb2.:-4}]

21.
@Q21
[{R}{D:1000}{S:b3b2}{A:Bb3b2}{D:1000}{S:g3e2}{A:Wg3e2}{D:2000}{R}
{QM:Select Black's 32nd move.;
32...Qc8:Incorrect. The correct answer was Qh5.:1;
32...Qd7:Incorrect. The correct answer was Qh5.:1;
32...Qe6:Incorrect. The correct answer was Qh5.:1;
32...Qxe2:Incorrect. The correct answer was Qh5.:-1;
32...Qxg2+:Incorrect. The correct answer was Qh5.:-1;
32...Qh5:Correct.:2}]

22.
@Q22
[{R}{D:1000}{S:g4h5}{A:Bg4h5}{D:1000}{S:h6h5}{A:Wh6h5}{D:2000}{R}
{QM:Select Black's 33rd move.;
33...Bxd3:Incorrect. The correct answer was gxh5.:-4;
33...gxh5:Correct.:1}]

23.
@Q23
[{R}{D:1000}{S:g6h5}{A:Bg6h5}{D:1000}{S:g2f2}{A:Wg2f2}{D:2000}{R}
{QM:Select Black's 34th move.;
34...Bxd3:Incorrect. The correct answer was Rxe2.:2;
34...Rxe2:Correct.:5;
34...f6:Incorrect. The correct answer was Rxe2.:-1;
34...Kg7:Incorrect. The correct answer was Rxe2.:-3;
34...Kxh7:Incorrect. The correct answer was Rxe2.:1}]

24.
@Q24
[{R}{D:1000}{S:b2e2}{A:Bb2e2}{D:1000}{S:f2e2}{A:Wf2e2}{D:2000}{R}
{QM:Select Black's 35th move.;
35...Bxd3:Correct.:2;
35...Kxh7:Incorrect. The correct answer was Bxd3.:-1}]

25.
@Q25
[{R}{D:1000}{S:a6d3}{A:Ba6d3}{D:1000}{S:e2d2}{A:We2d2}{D:2000}{R}
{QM:Select Black's 36th move.;
36...Bxe4:Incorrect. The correct answer was Bxf1.:1;
36...Bxf1:Correct.:2}]

26.
@Q26
[{R}{D:1000}{S:d3f1}{A:Bd3f1}{D:1000}{S:g1f1}{A:Wg1f1}{D:2000}{R}
{QM:Select Black's 37th move.;
37...Rb8:Incorrect. The correct answer was Kxh7.:1;
37...Rc8:Incorrect. The correct answer was Kxh7.:1;
37...Kxh7:Correct.:3;
37...h4:Incorrect. The correct answer was Kxh7.:-1;
37...f6:Incorrect. The correct answer was Kxh7.:-1}]

27.
@Q27
[{R}{D:1000}{S:h8h7}{A:Bh8h7}{D:1000}{S:d2d5}{A:Wd2d5}{D:2000}{R}
{QM:Select Black's 38th move.;
38...a4:Correct.:3;
38...Ra8:Incorrect. The correct answer was a4.:1;
38...Bd8:Incorrect. The correct answer was a4.:-1;
38...Kg6:Incorrect. The correct answer was a4.:1}]

28.
@Q28
[{R}{D:1000}{S:a5a4}{A:Ba5a4}{D:1000}{S:d5a5}{A:Wd5a5}{D:2000}{R}
{QM:Select Black's 39th move.;
39...Ra8:Incorrect. The correct answer was Kg6.:-3;
39...f6:Incorrect. The correct answer was Kg6.:-2;
39...Kg6:Correct.:3;
39...Rg8:Incorrect. The correct answer was Kg6.:1;
39...h4:Incorrect. The correct answer was Kg6.:1}]

29.
@Q29
[{R}{D:1000}{S:h7g6}{A:Bh7g6}{D:1000}{S:a5a4}{A:Wa5a4}{D:2000}{R}
{QM:Select Black's 40th move.;
40...Rb8:Incorrect. The correct answer was Bxg5.:1;
40...Rc8:Incorrect. The correct answer was Bxg5.:2;
40...Bxg5:Correct.:2;
40...Rh8:Incorrect. The correct answer was Bxg5.:1;
40...h4:Incorrect. The correct answer was Bxg5.:1}]

30.
@Q30
[{R}{D:1000}{S:e7g5}{A:Be7g5}{D:1000}{S:e3b6}{A:We3b6}{D:2000}{R}
{QM:Select Black's 41st move.;
41...Rb8:Incorrect. The correct answer was Rc8.:1;
41...Rc8:Correct.:4;
41...Bd8:Incorrect. The correct answer was Rc8.:-2;
41...f5:Incorrect. The correct answer was Rc8.:2;
41...Kf6:Incorrect. The correct answer was Rc8.:2}]

Bonus Questions - Tutorial One
31.
@Q0
[BONUS QUESTIONS]

32.
@Q32
[{F:W}{B:1rb1k2r/3nbppp/p1qpp3/1p4P1/4PP2/P2BBQ2/1PP1N2P/R3K2R WHITE}
{R}{D:1000}{S:a6a5}{A:Ba6a5}{D:2000}{R}
{VB:Bonus Question 1. 
How does White reply to 14...a5? Give his next move.;e2d4;Correct. After 14...a5?, 15. Nd4 attacks both the Queen and the b5-pawn.  If 15...Qc5, then 16. Nxe6. And if 15...Qa6, then 16. a4.:1;{R}{B:1rb1k2r/3nbppp/2qpp3/pp4P1/4PP2/P2BBQ2/1PP1N2P/R3K2R}{A:We2d4}{S:e2d4}Incorrect. White's best next move would be Nd4.}]

33.
@Q33
[{F:W}{B:1rb1k2r/2q1bppp/p2pp3/2n3P1/3NPP1P/P2BBQ2/2P5/R4RK1 WHITE}
{R}{D:1000}{S:c7a5}{A:Bc7a5}{D:2000}{R}
{VB:Bonus Question 2. 
What does White do after 18...Qa5?  Give his next move.;d4c6;Correct. After 18...Qa5?, 19. Nc6 then wins the exchange.:1;{R}{B:1rb1k2r/4bppp/p2pp3/q1n3P1/3NPP1P/P2BBQ2/2P5/R4RK1}{A:Wd4c6}{S:d4c6}Incorrect. White should play Nc6.}]

34.
@Q34
[{F:W}{B:1rb2rk1/2q1bppp/p2p4/2n1pPP1/4P2P/P2BBQ2/2P1N3/R4RK1 WHITE}
{VB:Bonus Question 3. 
What move does White threaten to play?;f5f6;Correct. White wants to play this advance, which threatens to bust up Black's castled position.  This is why Portisch played 20...Bd8! Then, on 21. f6, he does not have to exchange pawns. Instead he can play 21...g6, keeping the kingside closed.:1;{R}{B:1rb2rk1/2q1bppp/p2p4/2n1pPP1/4P2P/P2BBQ2/2P1N3/R4RK1}{A:Wf5f6}{S:f5f6}Incorrect. White threatens to play f6.}]

35.
@Q35
[{F:W}{B:3b1rk1/3q1p1p/b2p2PP/p3p1P1/4P3/Pr1PBQN1/3R4/5RK1 WHITE}
{R}{D:1000}{S:f7g6}{A:Bf7g6}{D:2000}{R}
{VB:Bonus Question 4. 
How does White answer 27...fxg6? Give his next move.;f3f8;Correct. After 27...fxg6, 28. Qxf8 is checkmate.:1;{R}{B:3b1rk1/3q3p/b2p2pP/p3p1P1/4P3/Pr1PBQN1/3R4/5RK1}{A:Wf3f8}{S:f3f8}Incorrect. White should answer with Qxf8#.}]

36.
@Q36
[{F:W}{B:3b1rk1/3q1p1P/b2p2p1/p3p1P1/4P3/Pr1PBQN1/3R4/5RK1 WHITE}
{R}{D:1000}{S:g8h7}{A:Bg8h7}{D:1000}{R}{S:d2h2}{A:Wd2h2}{D:1000}{R}{S:h7g7}{A:Bh7g7}{D:2000}{R}
{VB:Bonus Question 5. 
After 28...Kxh7 29. Rh2+ Kg7, how should White continue? Give his next move.;g3f5;Correct. This is a very powerful Knight sacrifice, since 30...gxf5 31. Qh5 yields a mating attack. The same is true even if Black declines the Knight, 30...Kg8, for 31. Qh3 is a killer.:2;{R}{B:3b1r2/3q1pk1/b2p2p1/p3p1P1/4P3/Pr1PBQN1/7R/5RK1}{A:Wg3f5}{S:g3f5}Incorrect. White should continue with Nf5+.}]

37.
@Q37
[{F:B}{B:5r1k/4bp1P/b2p2pQ/p3p1P1/4P1q1/Pr1PB1N1/6R1/5RK1 BLACK}
{R}{D:1000}{S:a6d3}{A:Ba6d3}{D:1000}{S:g3f5}{A:Wg3f5}{D:2000}{R}
{QM:Bonus Question 6. 
After 31...Bxd3 32. Nf5, Black is in trouble and has to lose his Queen. What's the best way for Black to give up the Queen?;
32...gxf5:Incorrect. This capture is refuted by 32. Rxg4 fxg4 33. g6.:0;
32...Qxg2+:Correct. This is best. After 33. Kxg2, Black has various options, such as Bd3xf1+, Bd3xe4+, and g6xf5.:2}]

38.
@Q38
[{F:B}{B:5r1k/4bp1P/b2p2pQ/p3p1P1/4P1q1/Pr1PB1N1/6R1/5RK1 BLACK}
{R}{D:1000}{S:a6d3}{A:Ba6d3}{D:1000}{R}{S:g3f5}{A:Wg3f5}{D:1000}{R}{S:g4g2}{A:Bg4g2}
{D:1000}{R}{S:g1g2}{A:Wg1g2}{D:2000}{R}
{QM:Bonus Question 7. 
After 31...Bxd3 32. Nf5 Qxg2+ 33. Kxg2, what should Black play?;
33...Bxe4+:Correct. After 33...Bxe4+, no matter where White's king moves, Black is able to capture on f5, with a chance to defend himself. The resulting position is highly unclear.:2;
33...Bxf1+:Incorrect. After 34. Kxf1 gxf5 35. exf5 Rxe3, White is winning by 36. f6.:0}]

39.
@Q39
[{F:B}{B:5r1k/4bp1P/b2p2pQ/p3p1P1/4P1q1/P2PB1N1/1r4R1/5RK1 BLACK}
{R}{D:1000}{S:g3f5}{A:Wg3f5}{D:2000}{R}
{VB:Bonus Question 8. 
How does Black answer 32. Nf5?  Give his next move.;g4g2;Correct. Checkmate is the definitive response.:1;{R}{B:5r1k/4bp1P/b2p2pQ/p3pNP1/4P1q1/P2PB3/1r4R1/5RK1}{A:Bg4g2}{S:g4g2}Incorrect. Black should answer with Qxg2#.}]

40.
@Q40
[{F:B}{B:5r1k/4bp1P/b2p2pQ/p3p1P1/4P1q1/P2PB1N1/1r4R1/5RK1 BLACK}
{R}{D:1000}{S:g2b2}{A:Wg2b2}{D:2000}{R}
{VB:Bonus Question 9. 
What does Black do after 32. Rxb2? Give his next move.;g4g3;This reply, followed by 33...Qxe3, gains two minor pieces for the Rook. Moreover, White's attack is stalled. Portisch undoubtedly worked it out before he played 30...Qg4.:1;{R}{B:5r1k/4bp1P/b2p2pQ/p3p1P1/4P1q1/P2PB1N1/1R6/5RK1}{A:Bg4g3}{S:g4g3}Incorrect. Black should play Qxg3+.}]

41.
@Q41
[{F:W}{B:5r1k/4bp1P/b2p4/p3p1Pp/4P3/P2PB3/1r2NR2/5RK1 WHITE}
{R}{D:1000}{S:h8g7}{A:Bh8g7}{D:2000}{R}
{VB:Bonus Question 10. 
Why is 34...Kg7 a bad move? Give White's reply.;f2f7;The Black King gets overloaded after 35. Rxf7+. This overloads the Black king:  35...Rxf7 36. Rxf7+ Kh8 (36...Kxf7 37. h8/Q). The likely follow up is 37. Rxe7 Rxe2 38. g6 Bb5 and now either 39. Bg5 or 39. Bh6 will mate shortly.:2;{R}{B:5r2/4bpkP/b2p4/p3p1Pp/4P3/P2PB3/1r2NR2/5RK1}{A:Wf2f7}{S:f2f7}Incorrect. White should reply with Rxf7+.}]

42.
@Q42
[{F:W}{B:5r2/4bp1k/3p4/R3p1Pp/p3P3/P3B3/8/5K2 WHITE}
{R}{D:1000}{S:f7f6}{A:Bf7f6}{D:2000}{R}
{VB:Bonus Question 11. 
How does White reply to 39...f6? Give his next move.;a5a7;White pins the Bishop, and this is very strong. If 40...fxg5+, then 41. Ke2 Rf7 42. Bxg5 gains the exchange.:2;{R}{B:5r2/4b2k/3p1p2/R3p1Pp/p3P3/P3B3/8/5K2}{A:Wa5a7}{S:a5a7}Incorrect. White should reply with Ra7.}]

43.
@Q43
[{F:W}{B:5r2/5p2/1B1p2k1/4p1bp/R3P3/P7/8/5K2 WHITE}
{R}{D:1000}{S:g5d8}{A:Bg5d8}{D:2000}{R}
{VB:Bonus Question 12. 
If Black plays 41...Bd8, looking to trade bishops, what should White do? Give his next move.;a4a8;The move 41...Bd8 is bad technique, for after 42. Ra8 Be7 43. Rxf8 Bxf8 44. a4 White will soon threaten to queen. Instead, Black has to give up the exchange by 42...Bxb6 43. Rxf8. This goes to show that you have to be careful right up to the end.:2;{R}{B:3b1r2/5p2/1B1p2k1/4p2p/R3P3/P7/8/5K2}{A:Wa4a8}{S:a4a8}Incorrect. White should play Ra8.}]


44.
@Q44
[Conclusion: This game is typical of Black's strategy in the Scheveningen Sicilian, which is characterized by the pawns at d6 and e6. 

On the Kingside, Black remains passive to avoid giving White targets for attack. In the center, Black tries to remain flexible, keeping his pawns at e6 and d6 to hold White's pieces out, but ready to advance d6-d5 or e6-e5 if the opportunity arises. Only on the Queenside does Black become aggressive, looking to open a file and penetrate with his pieces. Portisch had to accomplish all of his strategic aims to win this game, and he had to do it under duress. Iordachescu threw a massive pawn assault against his castled King and only cool defense was able to hold White off. His 20th move, Be7-d8, is significant, sidestepping the onrushing pawns and slowing White down. 

Eventually White did force a breach in the castled position but it was not enough. Portisch's Queenside counterplay was in full swing and a timely trade of Queens killed off the last vestiges of White's attack. At the very end, 41...Rc8 disposed of White's last annoying threat, 42. Bc7. With this gone, White was looking at a position where he was two pawns down with no real hope of salvaging the game. So he gave up.]
