MESON Chess Problem Database
Problem Display
PID: 272425 (1R5K/k1B3Q1/3p4/1P6/2P5/8/2n2Prp/7B w - - 0 1)
Stuart Green, G
The Problemist, 1957
#2
8 + 5
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Ra8#
- 1...Rxf2
- 2.Ra8#
- 1...Rg3
- 2.Ra8#
- 1...Rg4
- 2.Ra8#
- 1...Rg5
- 2.Ra8#
- 1...Rg6
- 2.Ra8#
- 1...Rxg7
- 2.Ra8#
- 1...Sa1
- 2.Qxa1#
- 2.Qd4#
- 1...Se1
- 2.Qa1#
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Se3
- 2.Qa1#
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...d5
- 2.Bg3#
- 1...Rg1
- Tries
- 1.Kh7?
- 1...Rxf2
- 2.Ra8#
- 1...Rg1
- 2.Ra8#
- 1...Rg3
- 2.Ra8#
- 1...Rg4
- 2.Ra8#
- 1...Rg5
- 2.Ra8#
- 1...Rg6
- 2.Ra8#
- 1...Sa1
- 2.Qxa1#
- 2.Qd4#
- 1...Se1
- 2.Qa1#
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Se3
- 2.Qa1#
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...d5
- 2.Bg3#
- 1...Rxg7+!
- 1...Rxf2
- 1.Ba5+?
- 1...Rxg7
- 2.Ra8#
- 1...Kxb8!
- 1...Rxg7
- 1.Bd8+?
- 1...Rxg7
- 2.Ra8#
- 1...Kxb8!
- 1...Rxg7
- 1.Qa1+?
- 1...Sa3
- 2.Qd4#
- 2.Qxa3#
- 1...Sxa1!
- 1...Sa3
- 1.Qc3?
- threat
- 2.Qa5#
- 1...Sb4
- 2.Qd4#
- 2.Qe3#
- 1...Rg8+!
- threat
- 1.Qf6?
- 1...Rxf2
- 2.Ra8#
- 1...Sa1
- 2.Qxa1#
- 2.Qd4#
- 1...Rg1
- 2.Ra8#
- 1...Rg3
- 2.Ra8#
- 1...Rg4
- 2.Ra8#
- 1...Rg5
- 2.Ra8#
- 1...Rg6
- 2.Ra8#
- 1...Rg7
- 2.Ra8#
- 1...Se1
- 2.Qa1#
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Se3
- 2.Qa1#
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...d5
- 2.Qa6#
- 2.Qb6#
- 1...Rg8+!
- 1...Rxf2
- 1.Qg4?
- 1...Rxf2
- 2.Ra8#
- 1...Rxg4
- 2.Ra8#
- 1...Sa1
- 2.Qd4#
- 1...Rg1
- 2.Ra8#
- 1...Rg3
- 2.Ra8#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...d5!
- 1...Rxf2
- 1.Qd7?
- threat
- 2.Bxd6#
- 1...Rg7
- 2.Ra8#
- 1...d5
- 2.Bxh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 1...Rg8+!
- threat
- 1.Qe7?
- threat
- 2.Bxd6#
- 1...Rg7
- 2.Ra8#
- 1...d5
- 2.Bxh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qc5#
- 1...Rg8+!
- threat
- 1.Qf7?
- threat
- 2.Bxd6#
- 1...Rxf2
- 2.Ra8#
- 1...Rg7
- 2.Ra8#
- 1...d5
- 2.Bxh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 1...Rg8+!
- threat
- 1.f4?
- 1...Rxg7
- 2.Ra8#
- 1...Sa1
- 2.Qd4#
- 1...Rg1
- 2.Ra8#
- 1...Rd2
- 2.Bxd6#
- 2.Ra8#
- 1...Re2
- 2.Ra8#
- 1...Rf2
- 2.Bxd6#
- 2.Ra8#
- 1...Rg3
- 2.Ra8#
- 1...Rg4
- 2.Ra8#
- 1...Rg5
- 2.Ra8#
- 1...Rg6
- 2.Ra8#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...d5!
- 1...Rxg7
- 1.Kh7?
- Keys
- 1.Qg3!
- 1...Rxf2
- 2.Ra8#
- 1...Rxg3
- 2.Ra8#
- 1...Sa1
- 2.Qa3#
- 2.Qe3#
- 1...Rg1
- 2.Ra8#
- 1...Se1
- 2.Qa3#
- 2.Qe3#
- 1...Sa3
- 2.Qxa3#
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Qa3#
- 1...d5
- 2.Bb6#
- 1...Rxf2
- 1.Qg3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(b);::R1(G)
- R(b);XP(B)::R1(G)
- R(b);XQ(F)::R1(G)
- S(a);N_GUARD::QAB(F)
- S(a);N_GUARD::QAB(F),XS(a)
- P(d);OGATE::QAR(F)+B(E)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- R(b);XP(B)::R1(G)
- R(b);::R1(G)
- S(a);N_GUARD::QAB(F)
- S(a);N_GUARD::QAB(F),XS(a)
- P(d);OGATE::QAR(F)+B(E)
- Refutation
- R(b);CHECK,XQ(F)
- Try
- B(E);CHECK
- Vars
- R(b);XQ(F)::R1(G)
- Refutation
- K(e);S_FLIGHT,XR(G)
- Try
- B(E);CHECK
- Vars
- R(b);XQ(F)::R1(G)
- Refutation
- K(e);S_FLIGHT,XR(G)
- Try
- Q(F);CHECK
- Refutation
- S(a);XQ(F)
- Try
- Q(F);
- Threat
- QAR2(F)
- Refutation
- R(b);CHECK
- Try
- Q(F);
- Vars
- R(b);XP(B)::R1(G)
- R(b);::R1(G)
- S(a);N_GUARD::QAB(F)
- S(a);N_GUARD::QAB(F),XS(a)
- Refutation
- R(b);CHECK
- Try
- Q(F);
- Vars
- R(b);XP(B)::R1(G)
- R(b);XQ(F)::R1(G)
- S(a);N_GUARD::QAB(F)
- R(b);::R1(G)
- S(a);N_GUARD::QAB(F),XS(a)
- Refutation
- P(d);
- Try
- Q(F);
- Threat
- QAR(F)+B(E),XP(d)
- Vars
- R(b);::R1(G)
- Refutation
- R(b);CHECK
- Try
- Q(F);
- Threat
- QAR(F)+B(E),XP(d)
- Vars
- R(b);::R1(G)
- Refutation
- R(b);CHECK
- Try
- Q(F);
- Threat
- QAR(F)+B(E),XP(d)
- Vars
- R(b);XP(B)::R1(G)
- R(b);::R1(G)
- Refutation
- R(b);CHECK
- Try
- P(B);
- Vars
- R(b);XQ(F)::R1(G)
- S(a);N_GUARD::QAB(F)
- R(b);::R1(G)
- S(a);N_GUARD::QAB(F),XS(a)
- Refutation
- P(d);
- Try
- Actual
- Q(F);
- Vars
- R(b);XP(B)::R1(G)
- R(b);XQ(F)::R1(G)
- R(b);::R1(G)
- S(a);N_GUARD::QAB(F),XS(a)
- S(a);N_GUARD::QAB(F)
- S(a);N_GUARD::QAR(F)
- P(d);::B(E)
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