Black to play and win (medium)
⇤
←
→
⇥
↺
1...Ng4
2.hxg4 Qe3+
3.Kh2 Rh8!!
4.Bf3 hxg4+
5.Kg3 Qf4+
6.Kf2 g3+
7.Kg1 Rh1+ { 7...Rh1+ 8.Kxh1 Qh4+ 9.Kg1 Qh2# }
0-1
[Event "?"] [Site "Buenos Aires"] [Date "1972.??.??"] [Round "?"] [White "Kasas"] [Black "Debarnot"] [Result "0-1"] [FEN "4r3/5pk1/2Q2n2/3B2pp/2b2q2/P6P/6P1/R2R2K1 b - - 0 1"] [SetUp "1"] 1...Ng4 2.hxg4 Qe3+ 3.Kh2 Rh8!! 4.Bf3 hxg4+ 5.Kg3 Qf4+ 6.Kf2 g3+ 7.Kg1 Rh1+ { 7...Rh1+ 8.Kxh1 Qh4+ 9.Kg1 Qh2# } 0-1