MESON Chess Problem Database
Problem Display
PID: 276402 (b3KRnN/r2R1pp1/2P1Pk1b/1p2N1pq/3PP1Qn/8/8/8 w - - 0 1)
Gockel, Hubert
diagrammes, 1979
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxd7
- 2.Sxd7#
- 1...Sg2
- 2.Qf5#
- 1...Sf3
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sg6
- 2.Rfxf7#
- 2.Qf5#
- 1...g6
- 2.Rfxf7#
- 1...Rxd7
- Tries
- 1.Sd3?
- threat
- 2.e5#
- 1...Sf5
- 2.Qxf5#
- 1...g6
- 2.Rfxf7#
- 1...Sf3
- 2.Qf5#
- 1...Sg6
- 2.Rfxf7#
- 2.Qf5#
- 1...Qxg4!
- threat
- 1.Sf3?
- threat
- 2.e5#
- 1...Sxf3
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...g6
- 2.Rfxf7#
- 1...Sg6
- 2.Rfxf7#
- 2.Qf5#
- 1...Qxg4!
- threat
- 1.Sc4?
- threat
- 2.e5#
- 1...Sf5
- 2.Qxf5#
- 1...g6
- 2.Rfxf7#
- 1...Sf3
- 2.Qf5#
- 1...Sg6
- 2.Rfxf7#
- 2.Qf5#
- 1...Qxg4!
- threat
- 1.Seg6?
- threat
- 2.Rfxf7#
- 2.e5#
- 1...Qxg6
- 2.e5#
- 1...Rxd7
- 2.e5#
- 1...Sxg6
- 2.Rfxf7#
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sf3
- 2.Rfxf7#
- 2.Qf5#
- 1...Qxg4!
- threat
- 1.Rdxf7+?
- 1...Rxf7
- 2.Sd7#
- 1...Qxf7+!
- 1...Rxf7
- 1.Qf4+?
- 1...Kxe6
- 2.d5#
- 1...Sf5
- 2.Qxf5#
- 1...gxf4!
- 1...Kxe6
- 1.exf7?
- threat
- 2.Rd6#
- 1...Qxf7+
- 2.Rfxf7#
- 1...Qxg4
- 2.fxg8Q#
- 2.fxg8B#
- 1...Rxd7
- 2.Sxd7#
- 1...Sf5
- 2.Qxf5#
- 1...g6
- 2.fxg8S#
- 1...Bxc6!
- threat
- 1.Sd3?
- Keys
- 1.Sexf7!
- threat
- 2.e5#
- 1...Qxf7+
- 2.Rfxf7#
- 1...Qxg4
- 2.Sd8#
- 1...Sf5
- 2.Qxf5#
- 1...g6
- 2.Sxh6#
- 1...Sf3
- 2.Qf5#
- 1...Sg6
- 2.Qf5#
- threat
- 1.Sexf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- R(g);XR(G)::S(D),XR(g)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- P(i);S_CUTQ(d)::R1(I),XP(h)
- Tries
- Try
- S(D);
- Threat
- P(B)
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- P(i);S_CUTQ(d)::R1(I),XP(h)
- S(a);N_GUARD::QAR1(C)
- Refutation
- Q(d);XQ(C)
- Try
- S(D);
- Threat
- P(B)
- Vars
- S(a);N_GUARD,XS(D)::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- P(i);S_CUTQ(d)::R1(I),XP(h)
- Refutation
- Q(d);XQ(C)
- Try
- S(D);
- Threat
- P(B)
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- P(i);S_CUTQ(d)::R1(I),XP(h)
- S(a);N_GUARD::QAR1(C)
- Refutation
- Q(d);XQ(C)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(d);XS(D)::P(B)
- R(g);XR(G)::P(B)
- S(a);N_GUARD::QAR1(C),XS(a)
- Refutation
- Q(d);XQ(C)
- Try
- R(G);CHECK,P_SPINR(G),XP(h)
- Vars
- R(g);P_SPINR(g),XR(G)::S(D)
- Refutation
- Q(d);CHECK,P_SPINQ(d),XR(G)
- Try
- Q(C);CHECK
- Vars
- K(e);N_SPINP(h),P-FLIGHT,S_CUTP(c),S_CUTS(a),XP(F)::P(A)
- S(a);N_GUARD,P_SPINS(a)::QAR1(C),XS(a)
- Refutation
- P(c);XQ(C)
- Try
- P(F);P_SPINP(F),XP(h)
- Threat
- R(G)
- Vars
- Q(d);CHECK,OGATE,P_SPINQ(d),XP(F)::R1(I),XQ(d)
- Q(d);N_PINP(F),XQ(C)::PXS(k)=Q
- R(g);XR(G)::S(D),XR(g)
- S(a);N_GUARD::QAR1(C),XS(a)
- P(i);N_PINP(F)::PXS(k)=S
- Refutation
- B(j);P_PINR(G),XP(E)
- Try
- Actual
- S(D);P_SPINS(D),XP(h)
- Threat
- P(B)
- Vars
- Q(d);CHECK,OGATE,P_SPINQ(d),XS(D)::R1(I),XQ(d)
- Q(d);N_PINS(D),XQ(C)::R(I)+S(D)
- S(a);N_GUARD::QAR1(C),XS(a)
- P(i);N_PINS(D)::R(I)+S(D),XB(f)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD,N_PINS(D)::QAR1(C)
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