MESON Chess Problem Database
Problem Display
PID: 148117 (8/BB3PQ1/NP2RP2/1K1n4/3k3r/1R1p3r/3P4/n7 w - - 0 1)
Goumondy, Claude
Europe Echecs, 1985
#2
11 + 6
SOLUTION
- SOUND
- Sets
- 1...Sc3+
- 2.dxc3#
- 1...Sb4
- 2.Rxb4#
- 1...Sf4
- 2.Rb4#
- 2.Re4#
- 1...Sxb6
- 2.Bxb6#
- 2.Rb4#
- 1...Sxf6
- 2.Rb4#
- 2.Qxf6#
- 1...Sc7+
- 2.bxc7#
- 1...Se7
- 2.Rb4#
- 2.fxe7#
- 1...Sc3+
- Tries
- 1.Sb8?
- threat
- 2.Sc6#
- 1...Sc3+
- 2.dxc3#
- 1...Sc7+
- 2.bxc7#
- 1...Sxb6
- 2.Bxb6#
- 2.Rb4#
- 1...Sxf6
- 2.Rb4#
- 2.Qxf6#
- 1...Sb4
- 2.Rxb4#
- 1...Sf4
- 2.Rb4#
- 2.Re4#
- 1...Se7
- 2.Rb4#
- 2.fxe7#
- 1...Se3!
- threat
- 1.Qf8?
- threat
- 2.Qc5#
- 1...Sc3+
- 2.dxc3#
- 1...Sc7+
- 2.bxc7#
- 1...Se7
- 2.Rb4#
- 1...Sxb3!
- threat
- 1.Qg1+?
- 1...Se3
- 2.Rb4#
- 2.Qxa1#
- 1...Re3!
- 1...Se3
- 1.Qg3?
- threat
- 2.Rxd3#
- 2.Qe5#
- 1...Sc3+
- 2.dxc3#
- 1...Sc7+
- 2.bxc7#
- 1...Sxb3
- 2.Qe5#
- 1...Re4
- 2.Rxd3#
- 1...Rf4
- 2.Rxd3#
- 1...Rh5
- 2.Rxd3#
- 1...Se3
- 2.Qe5#
- 2.dxe3#
- 1...Sb4
- 2.Rxb4#
- 2.Qe5#
- 1...Sf4
- 2.Rb4#
- 2.Re4#
- 1...Rxg3!
- threat
- 1.Qg4+?
- 1...Sf4
- 2.Rb4#
- 2.Re4#
- 1...Rxg4!
- 1...Sf4
- 1.Qg5?
- threat
- 2.Qxd5#
- 2.Qe5#
- 1...Sc3+
- 2.dxc3#
- 1...Sc7+
- 2.bxc7#
- 1...Sxb6
- 2.Bxb6#
- 2.Rb4#
- 2.Rd6#
- 2.Qc5#
- 2.Qd5#
- 2.Qe5#
- 1...Sxf6
- 2.Rb4#
- 2.Qxf6#
- 2.Qc5#
- 2.Qe5#
- 1...Re3
- 2.Qxd5#
- 1...Re4
- 2.Qxd5#
- 1...Se3
- 2.Qc5#
- 2.Qe5#
- 1...Sb4
- 2.Rxb4#
- 2.Qc5#
- 2.Qe5#
- 1...Sf4
- 2.Rb4#
- 2.Re4#
- 2.Qc5#
- 2.Qe5#
- 1...Se7
- 2.Rb4#
- 2.Qc5#
- 2.Qe5#
- 1...Rh5!
- threat
- 1.f8Q?
- threat
- 2.Qc5#
- 1...Sc3+
- 2.dxc3#
- 1...Sc7+
- 2.bxc7#
- 1...Se7
- 2.Rb4#
- 2.fxe7#
- 2.f7#
- 1...Sxb3!
- threat
- 1.f8B?
- threat
- 2.Bc5#
- 1...Sc3+
- 2.dxc3#
- 1...Sc7+
- 2.bxc7#
- 1...Se7
- 2.Rb4#
- 2.fxe7#
- 2.f7#
- 1...Sxb3!
- threat
- 1.Sb8?
- Keys
- 1.Sb4!
- threat
- 2.Sc6#
- 1...Sc3+
- 2.dxc3#
- 1...Sc7+
- 2.bxc7#
- 1...Sxb4
- 2.Rxb4#
- 1...Sxb6
- 2.Bxb6#
- 1...Sxf6
- 2.Qxf6#
- 1...Se3
- 2.Rxd3#
- 1...Sf4
- 2.Re4#
- 1...Se7
- 2.fxe7#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- S(f);CHECK,OGATE::P(A),XS(f)
- S(f);N_GUARD::R(B),XS(f)
- S(f);CHECK,OGATE::B(H)+P(E),XS(f)
- Tries
- Try
- S(D);
- Threat
- S(D)
- Vars
- S(f);CHECK,OGATE::P(A),XS(f)
- S(f);CHECK,OGATE::B(H)+P(E),XS(f)
- S(f);N_GUARD::R(B),XS(f)
- Refutation
- S(f);
- Try
- Q(K);
- Threat
- QAB1(K)
- Vars
- S(f);CHECK,OGATE::P(A),XS(f)
- S(f);CHECK,OGATE::B(H)+P(E),XS(f)
- S(f);N_GUARD::R(B)
- Refutation
- S(a);XR(B)
- Try
- Q(K);CHECK
- Refutation
- R(c);P_SPINR(c)
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,OGATE::P(A),XS(f)
- S(f);CHECK,OGATE::B(H)+P(E),XS(f)
- S(a);XR(B)::QAB1(K)
- R(e);::R1(B),XP(b)
- Refutation
- R(c);XQ(K)
- Try
- Q(K);CHECK
- Refutation
- R(e);XQ(K)
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,OGATE::P(A),XS(f)
- S(f);CHECK,OGATE::B(H)+P(E),XS(f)
- R(c);::QAR1(K),XS(f)
- R(e);::QAR1(K),XS(f)
- Refutation
- R(e);
- Try
- P(J);
- Threat
- QAB1(J)
- Vars
- S(f);CHECK,OGATE::P(A),XS(f)
- S(f);CHECK,OGATE::B(H)+P(E),XS(f)
- Refutation
- S(a);XR(B)
- Try
- P(J);
- Threat
- B(J)
- Vars
- S(f);CHECK,OGATE::P(A),XS(f)
- S(f);CHECK,OGATE::B(H)+P(E),XS(f)
- Refutation
- S(a);XR(B)
- Try
- Actual
- S(D);
- Threat
- S(D)
- Vars
- S(f);CHECK,OGATE::P(A),XS(f)
- S(f);CHECK,OGATE::B(H)+P(E),XS(f)
- S(f);OGATE,XS(D)::R(B),XS(f)
- S(f);OGATE,P_SPINS(f),XP(E)::B(H),XS(f)
- S(f);OGATE,P_SPINS(f),XP(G)::QAB(K),XS(f)
- S(f);S_CUTR(c)::R1(B),XP(b)
- S(f);S_CUTR(e)::R1(F)
- S(f);OGATE::QAB(K)+P(G),XS(f)
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