1.
[
{B:5r2/8/1R6/ppk3p1/2N3P1/P4b2/1K6/5B2}
{V:White has an extra piece, but his knight and rook are under threat, so he faces the immediate loss of his extra material. White to play and win.;b6b5;Correct;Incorrect.;The solution starts with a mini-combination, which either saves White's extra piece or forces Black's king into a horribly dangerous position. It seems that mate in a couple of moves is inevitable, but Black finds a remarkable stalemate defense, which is only refuted by a totally outrageous idea. 1 Ne5? Kxb6 2 Nd7+ Kc6 3 Nxf8 Bxg4 and now White cannot avoid the exchange of his last pawn, for example after 4 Nh7 Bd1 5 Nxg5 b4, and Black reaches the sanctuary of a drawn ending with bishop and knight against bishop.}]

2.
[
{S:b6b5}
1 Rxb5+!
The first of many sacrifices by both players. Black's king is deflected onto a square allowing a discovered check.]

3.
[
{S:c5b5}
1...Kxb5]

4.
[
{S:c4e5}
2 Ne5+]

5.
[
{S:b5a4}
2...Ka4
This is obviously a dangerous spot for the king, but there is no choice because the other two legal king moves both allow Nd7+ capturing the rook. This is winning because Black has lost his b-pawn, so there is no chance that he can exchange off White's last pawn.]

6.
[
{S:e5d7}
3 Nd7
The obvious move. White attacks the rook, stops the check on b8 and threatens two different mates in one. It is worth pausing here to find the subtle defense which Black now plays.]

7.
[
{S:f3e2}
3...Be2!!
Black is aiming for stalemate, so first of all he must jettison his bishop. Sacrificing the pieces in the other order is no good, since after 3...Rb8+ 4 Nxb8 Be2 White can simply play 5 Bg2.]

8.
[
{S:f1e2}
4 Bxe2
White cannot refuse the sacrifice by 4 Bg2, because after 4...Rf2! 5 Bc6+ Bb5+ White is in check, and so has no time for a knight mate.]

9.
[
{S:f8b8}
4...Rb8+
If White takes the rook it is stalemate, so there appears to be nothing better than 5 Kc3 (5 Ka2 Rb2+! also draws) Rb3+ 6 Kd4 Kxa3, but then Black's dangerous passed a-pawn guarantees a comfortable draw. The move which actually wins is one of the most remarkable I have ever seen.]

10.
[
{S:e2b5}
5 Bb5+!!
After 5...Kxb5 the stalemate is gone and White can safely take the rook, so Black's reply is forced.]

11.
[
{S:b8b5}
5...Rxb5+]

12.
[
{S:b2a2}
6 Ka2
Black has to move his rook, but incredibly the rook is trapped. It can only avoid immediate capture by moving to b3, b7 or d5, but in every case White wins it with a knight fork. The result is that White emerges with a clear extra piece, leading to an easy win.]
