MESON Chess Problem Database
Problem Display
PID: 140577 (1b1r3n/p7/3N1pp1/R2Pk3/1pp1N3/4Q1P1/b1B5/3K4 w - - 0 1)
Gulyaev, Aleksandr Pavlovich (aka Grin, AP)
1st HM., BCF 134. Ty., 1973-1974
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxd6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 1...Bxd6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 1...b3
- 2.Qc3#
- 1...Rxd6
- Tries
- 1.Sxc4+?
- 1...Kf5
- 2.Sf2#
- 1...Bxc4!
- 1...Kf5
- 1.Sf5?
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 2.Sed6#
- 2.Qf4#
- 1...Rxd5+
- 2.Sd2#
- 1...Kxf5
- 2.Sf2#
- 1...Rd6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 2.Sexd6#
- 2.Qf4#
- 1...Bd6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 2.Sexd6#
- 2.Qf4#
- 1...c3
- 2.Sd2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg5#
- 2.Sed6#
- 2.Qf4#
- 1...g5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sxg5#
- 2.Sed6#
- 1...gxf5!
- threat
- 1.Sb7?
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 2.Sed6#
- 1...Rxd5+
- 2.Sd2#
- 1...Kf5
- 2.Sf2#
- 1...Rd6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 2.Sexd6#
- 1...Bd6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 2.Sexd6#
- 1...c3
- 2.Sd2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg5#
- 2.Sed6#
- 1...g5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sxg5#
- 2.Sed6#
- 1...f5!
- threat
- 1.Sf7+?
- 1...Kf5
- 2.Sf2#
- 1...Sxf7!
- 1...Kf5
- 1.Se8?
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 2.S4d6#
- 2.S4xf6#
- 1...Rxd5+
- 2.Sd2#
- 1...Kf5
- 2.Sf2#
- 2.S4xf6#
- 1...Rd6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 2.S4xd6#
- 2.S4xf6#
- 1...Bd6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 2.S4xd6#
- 2.S4xf6#
- 1...c3
- 2.Sd2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg5#
- 2.S4d6#
- 2.S4xf6#
- 1...f5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg5#
- 2.S4d6#
- 2.S4f6#
- 1...g5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sxg5#
- 2.S4d6#
- 2.S4xf6#
- 1...Rxe8!
- threat
- 1.Ra6?
- threat
- 2.Sc3#
- 1...Kxd5
- 2.Sxf6#
- 1...c3
- 2.Sxc3#
- 1...f5!
- threat
- 1.Qg5+?
- 1...Kd4
- 2.Sb5#
- 1...f5
- 2.Qf6#
- 1...fxg5!
- 1...Kd4
- 1.Sxc4+?
- Keys
- 1.Sb5!
- threat
- 2.Sec3#
- 1...Rxd5+
- 2.Sd2#
- 1...Kxd5
- 2.Sd4#
- 1...Kf5
- 2.Sf2#
- 1...c3
- 2.Sexc3#
- 1...f5
- 2.Qd4#
- threat
- 1.Sb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- P(b);N_GUARD::QAB(C)
- Tries
- Try
- S(H);CHECK,P_SPINP(G),XP(c)
- Vars
- K(d);P-FLIGHT::B(B)+S(E)
- Refutation
- B(a);XS(H)
- Try
- S(H);P_SPINP(G)
- Threat
- DUALS(6)
- Vars
- R(i);CHECK,P_SPINR(i),XP(G)::QAR(C)+S(E)
- K(d);P-FLIGHT,XS(H)::B(B)+S(E)
- Refutation
- P(f);XS(H)
- Try
- S(H);P_SPINP(G)
- Threat
- DUALS(5)
- Vars
- R(i);CHECK,P_SPINR(i),XP(G)::QAR(C)+S(E)
- K(d);P-FLIGHT::B(B)+S(E)
- Refutation
- P(e);
- Try
- S(H);CHECK,P_SPINP(G)
- Vars
- K(d);P-FLIGHT::B(B)+S(E)
- Refutation
- S(j);XS(H)
- Try
- S(H);P_SPINP(G)
- Threat
- DUALS(6)
- Vars
- R(i);CHECK,P_SPINR(i),XP(G)::QAR(C)+S(E)
- Refutation
- R(i);N_PINP(G),XS(H)
- Try
- R(F);
- Threat
- QAR(C)+S(E)
- Vars
- K(d);P-FLIGHT,XP(G)::S(E),XP(e)
- P(c);::QAR(C)+S(E),XP(c)
- Refutation
- P(e);
- Try
- Q(C);CHECK
- Vars
- K(d);S_FLIGHT::S(H)
- P(e);P_SPINP(e)::QAB1(C)
- Refutation
- P(e);XQ(C)
- Try
- Actual
- S(H);P_SPINP(G)
- Threat
- QAR(C)+S(E)
- Vars
- R(i);CHECK,SBLOCK,XP(G)::QAR(C)+S(E)
- K(d);P-FLIGHT,XP(G)::R(F)+S(H)
- K(d);P-FLIGHT::B(B)+S(E)
- P(c);::QAR(C)+S(E),XP(c)
- P(e);SBLOCK::QAB1(C)
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