[Event "Szachy"] [Site "?"] [Date "1963.??.??"] [Round "?"] [White "Grzeban, Grzegorz"] [Black "(+0005.11a8c5) U1"] [Result "1-0"] [SetUp "1"] [FEN "K7/8/1P3N2/2kN4/1n6/6p1/8/8 w - - 0 1"] [PlyCount "15"] [EventDate "1963.??.??"] {[%evp 0,15,745,705,705,705,715,715,745,745,1279,1289,1289,1289,29997,29998,29999,-30000]} {U1: Problemas (SEPA)=262-264 1-3/1964.} 1. Ne4+ (1. b7 $1 Na6 (1... g2 2. b8=Q) (1... Nxd5 2. Nxd5 g2 3. b8=Q) (1... Nc6 2. Ne3 $1) 2. Ne4+ Kxd5 3. Nxg3) 1... Kxd5 2. Nxg3 Kc5 3. b7 Na6 (3... Nc6 4. Nf5 Kb6 5. Nd4) 4. Ka7 Kb5 5. Ne2 (5. Ne4) 5... Ka5 6. Nc3 Nb4 $1 7. b8=N $1 Nd5 8. Nc6# 1-0