[Event "Petrograd"] [Site "?"] [Date "1917.??.??"] [Round "?"] [White "Alekhine"] [Black "Gofmeister"] [Result "*"] [Annotator "peter"] [SetUp "1"] [FEN "k1rb4/p3r3/Pp1Q1p2/3P2q1/P1P4p/1R4nP/2R3PK/6B1 w - - 0 1"] [PlyCount "13"] [EventDate "1932.02.??"] [EventType "tourn"] [EventRounds "11"] {[#]} {The threat is Nf5 (or Ne4), Bc7+ with idea of delivering Qh2 mate, which is quite hard to stop. Alekhine prevents it by attacking!} 1. c5 $1 { creating mating threats that have to be dealt with, but also trapping his own queen which is denied an escape to a3 or b4.} b5 {a reasonable idea, preventing Alekhine's mating idea and renewing the Nf5 or Ne4 threats which now also win the White queen.} (1... Re2 $1 {was correct but hard to find move} 2. Rxe2 Nxe2 3. Qd7 Qe5+ 4. Kh1 Qc7 5. Qxc7 Rxc7 6. c6 {is presumably won for Black}) (1... bxc5 {leads to a draw}) (1... Qf5 {leads to a draw}) (1... Nf5 { This no longer works - Black gets mated.} 2. cxb6 Nxd6 3. b7+ Kb8 (3... Nxb7 4. Rxc8#) (3... Rxb7 4. axb7+ Kb8 5. bxc8=Q#) 4. bxc8=Q#) 2. axb5 $3 $18 (2. a5 Ne4) 2... Ne4 {winning the self-trapped queen.} (2... Re2 {it is too late for this now} 3. Rxe2 Nxe2 4. b6 $18) 3. b6 $1 Nxd6 (3... axb6 4. cxb6 Qxg2+ 5. Rxg2 Nxd6 6. b7+ Nxb7 7. axb7+ Kb8 (7... Rxb7 8. Ra2+ Kb8 9. Ba7+ Kc7 10. Rc2+ Kd6 11. Rxc8 Rxb3 12. Rxd8+) 8. Ba7+ Kxa7 9. bxc8=N+) 4. cxd6 $1 {offering a rook too and removing the defence of b7} Rec7 (4... Rxc2 5. b7+ Kb8 6. Bxa7+ { and now a bishop} Kxa7 7. b8=Q+ Kxa6 8. Qb5+ Ka7 9. Qa4+ Ba5 10. Qxa5#) (4... Qg3+ 5. Kh1) (4... axb6 5. Rxc8+ Ka7 6. dxe7 Qe5+ 7. Kh1 Qxe7 8. Rxd8 Qxd8 9. Bxb6+ Qxb6 10. Rxb6 Kxb6 11. d6 $18) 5. b7+ Kb8 (5... Rxb7 6. Rxc8+ Rb8 7. Rcxb8#) 6. d7 Qg3+ 7. Kh1 {[#] And here Black resigned as White will deliver mate on c8. A stunning final position.} (7. Kh1 Qxb3 8. bxc8=Q+ Rxc8 9. Rxc8#) *