MESON Chess Problem Database
Problem Display
PID: 70156 (8/8/1Nn5/3R4/3nk3/6Q1/6P1/3K4 w - - 0 1)
Caine, Walter Edmund
Chess, 1950
#2
5 + 3
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Qf3#
- 1...Se2
- 2.Qf3#
- 1...Sb3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sb5
- 2.Qf3#
- 1...Sf5
- 2.Qf3#
- 1...Se6
- 2.Qf3#
- 1...Sb4
- 2.Re5#
- 1...Sa5
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sa7
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...Sb8
- 2.Re5#
- 1...Sd8
- 2.Re5#
- 1...Sc2
- Tries
- 1.Ke1?
- 1...Sf3+
- 2.Qxf3#
- 1...Se5
- 2.Rxe5#
- 1...Se2
- 2.Qf3#
- 1...Sb3
- 2.Qf3#
- 1...Sb5
- 2.Qf3#
- 1...Sf5
- 2.Qf3#
- 1...Se6
- 2.Qf3#
- 1...Sb4
- 2.Re5#
- 1...Sa5
- 2.Re5#
- 1...Sa7
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...Sb8
- 2.Re5#
- 1...Sd8
- 2.Re5#
- 1...Sc2+!
- 1...Sf3+
- 1.Kd2?
- threat
- 2.Qh4#
- 2.Qe3#
- 2.Qg4#
- 1...Sf3+
- 2.Qxf3#
- 2.gxf3#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sc2
- 2.Qh4#
- 2.Qf3#
- 2.Qg4#
- 1...Se2
- 2.Qe3#
- 2.Qf3#
- 1...Sf5
- 2.Qf3#
- 2.Qg4#
- 1...Se6
- 2.Qe3#
- 2.Qf3#
- 1...Sb3+!
- threat
- 1.Sa4?
- threat
- 2.Sc3#
- 1...Sf3
- 2.Qxf3#
- 1...Se5
- 2.Rxe5#
- 1...Se2
- 2.Qf3#
- 1...Sb5
- 2.Qf3#
- 1...Kxd5!
- threat
- 1.Sc4?
- 1...Se5
- 2.Rxe5#
- 1...Sc2
- 2.Qf3#
- 1...Se2
- 2.Qf3#
- 1...Sb3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sb5
- 2.Qf3#
- 1...Sf5
- 2.Qf3#
- 1...Se6
- 2.Qf3#
- 1...Sb4
- 2.Re5#
- 1...Sa5
- 2.Re5#
- 1...Sa7
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...Sb8
- 2.Re5#
- 1...Sd8
- 2.Re5#
- 1...Kxd5!
- 1...Se5
- 1.Sd7?
- threat
- 2.Sf6#
- 1...Sf3
- 2.Qxf3#
- 1...Se5
- 2.Rxe5#
- 1...Kxd5!
- threat
- 1.Sa8?
- 1...Sf3
- 2.Qxf3#
- 1...Se5
- 2.Rxe5#
- 1...Sc2
- 2.Qf3#
- 1...Se2
- 2.Qf3#
- 1...Sb3
- 2.Qf3#
- 1...Sb5
- 2.Qf3#
- 1...Sf5
- 2.Qf3#
- 1...Se6
- 2.Qf3#
- 1...Sb4
- 2.Re5#
- 1...Sa5
- 2.Re5#
- 1...Sa7
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...Sb8
- 2.Re5#
- 1...Sd8
- 2.Re5#
- 1...Kxd5!
- 1...Sf3
- 1.Sc8?
- 1...Sf3
- 2.Qxf3#
- 1...Se5
- 2.Rxe5#
- 1...Sc2
- 2.Qf3#
- 1...Se2
- 2.Qf3#
- 1...Sb3
- 2.Qf3#
- 1...Sb5
- 2.Qf3#
- 1...Sf5
- 2.Qf3#
- 1...Se6
- 2.Qf3#
- 1...Sb4
- 2.Re5#
- 1...Sa5
- 2.Re5#
- 1...Sa7
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...Sb8
- 2.Re5#
- 1...Sd8
- 2.Re5#
- 1...Kxd5!
- 1...Sf3
- 1.Qf4+?
- 1...Kd3
- 2.Qf3#
- 1...Kxf4!
- 1...Kd3
- 1.Qg4+?
- 1...Kd3
- 2.Qf3#
- 1...Ke3!
- 1...Kd3
- 1.Ke1?
- Keys
- 1.Qf2!
- 1...Kd3
- 2.Qf3#
- 1...Sc2
- 2.Qf3#
- 1...Se2
- 2.Qf3#
- 1...Sb3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sb5
- 2.Qf3#
- 1...Sf5
- 2.Qf3#
- 1...Se6
- 2.Qf3#
- 1...Sb4
- 2.Qxd4#
- 1...Sa5
- 2.Qxd4#
- 1...Se5
- 2.Rxd4#
- 1...Sa7
- 2.Qxd4#
- 1...Se7
- 2.Qxd4#
- 1...Sb8
- 2.Qxd4#
- 1...Sd8
- 2.Qxd4#
- 1...Kd3
- 1.Qf2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(D)
- S(c);N_GUARD::R1(D),XS(c)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(a);CHECK,N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(D),XS(c)
- S(a);N_GUARD::QAB1(C)
- S(c);N_GUARD::R1(D)
- Refutation
- S(a);CHECK
- Try
- K(A);P-FLIGHT
- Threat
- DUALS(3)
- Refutation
- S(a);CHECK
- Try
- S(E);
- Threat
- S(E)
- Vars
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(D),XS(c)
- S(a);N_GUARD::QAB1(C)
- Refutation
- K(b);S_FLIGHT,XR(D)
- Try
- S(E);
- Vars
- S(c);N_GUARD::R1(D),XS(c)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(D)
- Refutation
- K(b);S_FLIGHT,XR(D)
- Try
- S(E);
- Threat
- S(E)
- Vars
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(D),XS(c)
- Refutation
- K(b);S_FLIGHT,XR(D)
- Try
- S(E);
- Vars
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(D),XS(c)
- S(a);N_GUARD::QAB1(C)
- S(c);N_GUARD::R1(D)
- Refutation
- K(b);S_FLIGHT,XR(D)
- Try
- S(E);
- Vars
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(D),XS(c)
- S(a);N_GUARD::QAB1(C)
- S(c);N_GUARD::R1(D)
- Refutation
- K(b);S_FLIGHT,XR(D)
- Try
- Q(C);CHECK
- Vars
- K(b);P_SPINS(a),S_FLIGHT::QAR2(C)
- Refutation
- K(b);P-FLIGHT,XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(b);P_SPINS(a),S_FLIGHT::QAR2(C)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- Q(C);
- Vars
- K(b);P_SPINS(a),S_FLIGHT::QAR2(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::QAR1(C),XS(a)
- S(c);N_GUARD,SBLOCK::R1(D),XS(a)
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