MESON Chess Problem Database
Problem Display
PID: 58356 (4K3/8/Q1n1R3/2Pkn3/4R1N1/6P1/5p2/5B2 w - - 0 1)
Cox, H
The Australasian Chess Review, 1942
#2
8 + 4
| 81 | Chess | 1943 |
SOLUTION
- SOUND
- Sets
- 1...Kxe4
- 2.Qd3#
- 1...Kxc5
- 2.Qb5#
- 1...Kxe6
- 2.Rxe5#
- 1...Sd3
- 2.Qc4#
- 2.Qxc6#
- 1...Sf3
- 2.Qc4#
- 2.Qxc6#
- 1...Sc4
- 2.Qxc4#
- 2.Qxc6#
- 1...Sxg4
- 2.Qc4#
- 2.Qxc6#
- 1...Sg6
- 2.Qc4#
- 2.Qxc6#
- 1...Sd7
- 2.Qc4#
- 2.Qxc6#
- 1...Sf7
- 2.Qc4#
- 2.Qxc6#
- 1...Sb4
- 2.R6xe5#
- 1...Sd4
- 2.R4xe5#
- 2.R6xe5#
- 1...Sa5
- 2.R6xe5#
- 1...Sa7
- 2.R6xe5#
- 1...Se7
- 2.R6xe5#
- 1...Sb8
- 2.R6xe5#
- 1...Sd8
- 2.R6xe5#
- 1...Kxe4
- Tries
- 1.Sxf2?
- 1...Kxc5
- 2.Qb5#
- 1...Sd3
- 2.Qc4#
- 2.Qxc6#
- 1...Sf3
- 2.Qc4#
- 2.Qxc6#
- 1...Sc4
- 2.Qxc4#
- 2.Qxc6#
- 1...Sg4
- 2.Qc4#
- 2.Qxc6#
- 1...Sg6
- 2.Qc4#
- 2.Qxc6#
- 1...Sd7
- 2.Qc4#
- 2.Qxc6#
- 1...Sf7
- 2.Qc4#
- 2.Qxc6#
- 1...Sb4
- 2.R6xe5#
- 2.Qd6#
- 1...Sd4
- 2.R4xe5#
- 2.R6xe5#
- 2.Qd6#
- 1...Sa5
- 2.R6xe5#
- 2.Qd6#
- 1...Sa7
- 2.R6xe5#
- 2.Qd6#
- 1...Se7
- 2.R6xe5#
- 2.Qd6#
- 1...Sb8
- 2.R6xe5#
- 2.Qd6#
- 1...Sd8
- 2.R6xe5#
- 2.Qd6#
- 1...Kxe6!
- 1...Kxc5
- 1.Sh2?
- 1...Kxe4
- 2.Qd3#
- 1...Kxc5
- 2.Qb5#
- 1...Sd3
- 2.Qc4#
- 2.Qxc6#
- 1...Sf3
- 2.Qc4#
- 2.Qxc6#
- 1...Sc4
- 2.Qxc4#
- 2.Qxc6#
- 1...Sg4
- 2.Qc4#
- 2.Qxc6#
- 1...Sg6
- 2.Qc4#
- 2.Qxc6#
- 1...Sd7
- 2.Qc4#
- 2.Qxc6#
- 1...Sf7
- 2.Qc4#
- 2.Qxc6#
- 1...Sb4
- 2.R6xe5#
- 1...Sd4
- 2.R4xe5#
- 2.R6xe5#
- 1...Sa5
- 2.R6xe5#
- 1...Sa7
- 2.R6xe5#
- 1...Se7
- 2.R6xe5#
- 1...Sb8
- 2.R6xe5#
- 1...Sd8
- 2.R6xe5#
- 1...Kxe6!
- 1...Kxe4
- 1.Se3+?
- 1...Kxc5
- 2.Qb5#
- 1...Kxe6
- 2.Qxc6#
- 1...Kxe4!
- 1...Kxc5
- 1.Sf6+?
- 1...Kxc5
- 2.Qb5#
- 1...Kxe6!
- 1...Kxc5
- 1.Bc4+?
- 1...Kxc5
- 2.Qb5#
- 1...Sxc4
- 2.Qxc4#
- 2.Qxc6#
- 1...Kxe4!
- 1...Kxc5
- 1.Rc4?
- threat
- 2.Rd6#
- 1...Sxc4
- 2.Qxc4#
- 1...Sxg4
- 2.Qxc6#
- 1...Sf7
- 2.Qxc6#
- 1...Sd4
- 2.Sf6#
- 2.Rxe5#
- 1...Kxe6!
- threat
- 1.Rf4?
- 1...Kxc5
- 2.Qb5#
- 1...Sxg4
- 2.Qc4#
- 2.Qxc6#
- 1...Sd3
- 2.Qc4#
- 2.Qxc6#
- 1...Sf3
- 2.Qc4#
- 2.Qxc6#
- 1...Sc4
- 2.Qxc4#
- 2.Qxc6#
- 1...Sg6
- 2.Qc4#
- 2.Qxc6#
- 1...Sd7
- 2.Qc4#
- 2.Qxc6#
- 1...Sf7
- 2.Qc4#
- 2.Qxc6#
- 1...Sb4
- 2.Rxe5#
- 2.Qd6#
- 1...Sd4
- 2.Rxe5#
- 2.Qd6#
- 1...Sa5
- 2.Rxe5#
- 2.Qd6#
- 1...Sa7
- 2.Rxe5#
- 2.Qd6#
- 1...Se7
- 2.Rxe5#
- 2.Qd6#
- 1...Sb8
- 2.Rxe5#
- 2.Qd6#
- 1...Sd8
- 2.Rxe5#
- 2.Qd6#
- 1...Kxe6!
- 1...Kxc5
- 1.R4xe5+?
- 1...Kd4
- 2.Qd3#
- 2.Qc4#
- 2.Qa1#
- 1...Sxe5!
- 1...Kd4
- 1.Qd3+?
- 1...Kxc5
- 2.Qb5#
- 1...Kxe6
- 2.Qd7#
- 1...Sd4
- 2.R4xe5#
- 1...Sxd3!
- 1...Kxc5
- 1.Qb5?
- 1...Kxe4
- 2.Qd3#
- 1...Sxg4
- 2.Bc4#
- 2.Qc4#
- 2.Qxc6#
- 1...Sd3
- 2.Se3#
- 2.Sf6#
- 2.Qc4#
- 2.Qxc6#
- 1...Sf3
- 2.Se3#
- 2.Sf6#
- 2.Bc4#
- 2.Qc4#
- 2.Qxc6#
- 1...Sc4
- 2.Sf6#
- 2.Bxc4#
- 2.Qxc4#
- 2.Qxc6#
- 1...Sg6
- 2.Se3#
- 2.Sf6#
- 2.Bc4#
- 2.Qc4#
- 2.Qxc6#
- 1...Sd7
- 2.Se3#
- 2.Bc4#
- 2.Qc4#
- 2.Qxc6#
- 1...Sf7
- 2.Se3#
- 2.Sf6#
- 2.Bc4#
- 2.Qc4#
- 2.Qxc6#
- 1...Sb4
- 2.R6xe5#
- 1...Sd4
- 2.R4xe5#
- 2.R6xe5#
- 1...Sa5
- 2.R6xe5#
- 1...Sa7
- 2.R6xe5#
- 1...Se7
- 2.R6xe5#
- 1...Sb8
- 2.R6xe5#
- 1...Sd8
- 2.R6xe5#
- 1...Kxe6!
- 1...Kxe4
- 1.Qb7?
- threat
- 2.R6xe5#
- 1...Kxc5
- 2.Qb5#
- 1...Kxe6
- 2.Qd7#
- 2.Qf7#
- 1...Sxg4
- 2.Qxc6#
- 1...Sd3
- 2.Qxc6#
- 1...Sf3
- 2.Qxc6#
- 1...Sc4
- 2.Qxc6#
- 1...Sg6
- 2.Qxc6#
- 1...Sd7
- 2.Qxc6#
- 1...Sf7
- 2.Qxc6#
- 1...Kxe4!
- threat
- 1.Qa4?
- 1...Kxc5
- 2.Qb5#
- 1...Sxg4
- 2.Qxc6#
- 2.Qc4#
- 1...Sb4
- 2.R6xe5#
- 1...Sd4
- 2.R4xe5#
- 2.R6xe5#
- 1...Sd3
- 2.Qxc6#
- 2.Qc4#
- 1...Sf3
- 2.Qxc6#
- 2.Qc4#
- 1...Sc4
- 2.Qxc6#
- 2.Qxc4#
- 1...Sg6
- 2.Qxc6#
- 2.Qc4#
- 1...Sd7
- 2.Qxc6#
- 2.Qc4#
- 1...Sf7
- 2.Qxc6#
- 2.Qc4#
- 1...Sa5
- 2.R4xe5#
- 2.R6xe5#
- 1...Sa7
- 2.R4xe5#
- 2.R6xe5#
- 1...Se7
- 2.R4xe5#
- 2.R6xe5#
- 1...Sb8
- 2.R4xe5#
- 2.R6xe5#
- 1...Sd8
- 2.R4xe5#
- 2.R6xe5#
- 1...Kxe6!
- 1...Kxc5
- 1.Qb6?
- 1...Kxe6
- 2.Rxe5#
- 1...Sxg4
- 2.Bc4#
- 2.Qxc6#
- 1...Sd3
- 2.Se3#
- 2.Sf6#
- 2.Qxc6#
- 1...Sf3
- 2.Se3#
- 2.Sf6#
- 2.Bc4#
- 2.Qxc6#
- 1...Sc4
- 2.Sf6#
- 2.Bxc4#
- 2.Qxc6#
- 1...Sg6
- 2.Se3#
- 2.Sf6#
- 2.Bc4#
- 2.Qxc6#
- 1...Sd7
- 2.Se3#
- 2.Bc4#
- 2.Qxc6#
- 1...Sf7
- 2.Se3#
- 2.Sf6#
- 2.Bc4#
- 2.Qxc6#
- 1...Sb4
- 2.Sf6#
- 2.R6xe5#
- 1...Sd4
- 2.Sf6#
- 2.R4xe5#
- 2.R6xe5#
- 1...Sa5
- 2.Sf6#
- 2.R6xe5#
- 1...Sa7
- 2.Sf6#
- 2.R6xe5#
- 1...Se7
- 2.Sf6#
- 2.R6xe5#
- 1...Sb8
- 2.Sf6#
- 2.R6xe5#
- 1...Sd8
- 2.Sf6#
- 2.R6xe5#
- 1...Kxe4!
- 1...Kxe6
- 1.Sxf2?
- Keys
- 1.Sh6!
- 1...Kxe4
- 2.Qd3#
- 1...Kxc5
- 2.Qb5#
- 1...Kxe6
- 2.Qxc6#
- 1...Sd3
- 2.Qc4#
- 2.Qxc6#
- 1...Sf3
- 2.Qc4#
- 2.Qxc6#
- 1...Sc4
- 2.Qxc4#
- 2.Qxc6#
- 1...Sg4
- 2.Qc4#
- 2.Qxc6#
- 1...Sg6
- 2.Qc4#
- 2.Qxc6#
- 1...Sd7
- 2.Qc4#
- 2.Qxc6#
- 1...Sf7
- 2.Qc4#
- 2.Qxc6#
- 1...Sb4
- 2.R6xe5#
- 1...Sd4
- 2.R4xe5#
- 2.R6xe5#
- 1...Sa5
- 2.R6xe5#
- 1...Sa7
- 2.R6xe5#
- 1...Se7
- 2.R6xe5#
- 1...Sb8
- 2.R6xe5#
- 1...Sd8
- 2.R6xe5#
- 1...Kxe4
- 1.Sh6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(b);P_SPINS(c),S_FLIGHT,XR(C)::QAB1(F)
- K(b);OGATEB,P-FLIGHT,XP(E)::QAR1(F)
- K(b);P_SPINS(c),S_FLIGHT,XR(G)::R1(C),XS(c)
- S(d);N_GUARD::R1(G),XS(c)
- Tries
- Try
- S(D);XP(a)
- Vars
- K(b);OGATEB,P-FLIGHT,XP(E)::QAR1(F)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XR(G)
- Try
- S(D);
- Vars
- K(b);P_SPINS(c),S_FLIGHT,XR(C)::QAB1(F)
- K(b);OGATEB,P-FLIGHT,XP(E)::QAR1(F)
- S(d);N_GUARD::R1(G),XS(c)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XR(G)
- Try
- S(D);CHECK
- Vars
- K(b);P-FLIGHT,XP(E)::QAR1(F)
- K(b);P_SPINS(c),S_FLIGHT,XR(G)::QAR2(F),XS(d)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XR(C)
- Try
- S(D);CHECK
- Vars
- K(b);P-FLIGHT,XP(E)::QAR1(F)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XR(G)
- Try
- B(A);CHECK
- Vars
- K(b);P-FLIGHT,XP(E)::QAR1(F)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XR(C)
- Try
- R(C);
- Threat
- R1(G)
- Vars
- S(c);OGATE,XR(C)::QAB1(F),XS(c)
- S(c);N_GUARD,XS(D)::QAB1(F),XS(d)
- S(c);N_GUARD::QAB1(F),XS(d)
- Refutation
- K(b);P_SPINS(d),S_FLIGHT,XR(G)
- Try
- R(C);
- Vars
- K(b);OGATEB,P-FLIGHT,XP(E)::QAR1(F)
- Refutation
- K(b);P_SPINS(d),S_FLIGHT,XR(G)
- Try
- R(C);CHECK,XS(c)
- Refutation
- S(d);XR(C)
- Try
- Q(F);CHECK
- Vars
- K(b);OGATEB,P-FLIGHT,XP(E)::QAR1(F)
- K(b);OGATE,P_SPINS(c),S_FLIGHT,XR(G)::QAB1(F)
- S(d);P_SPINS(d)::R1(C),XS(c)
- Refutation
- S(c);XQ(F)
- Try
- Q(F);
- Vars
- K(b);P_SPINS(c),S_FLIGHT,XR(C)::QAB1(F)
- S(d);N_GUARD::R1(G),XS(c)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XR(G)
- Try
- Q(F);P_PINS(d)
- Threat
- R1(G),XS(c)
- Vars
- K(b);N_SPINS(d),OGATEB,P-FLIGHT,XP(E)::QAR1(F)
- S(c);N_GUARD,XS(D)::QAB1(F),XS(d)
- S(c);N_GUARD::QAB1(F),XS(d)
- Refutation
- K(b);N_SPINS(d),P_SPINS(c),S_FLIGHT,XR(C)
- Try
- Q(F);
- Vars
- K(b);OGATEB,P-FLIGHT,XP(E)::QAR1(F)
- S(d);N_GUARD::R1(G),XS(c)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XR(G)
- Try
- Q(F);
- Vars
- K(b);P_SPINS(c),S_FLIGHT,XR(G)::R1(C),XS(c)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XR(C)
- Try
- Actual
- S(D);
- Vars
- K(b);P_SPINS(c),S_FLIGHT,XR(C)::QAB1(F)
- K(b);OGATEB,P-FLIGHT,XP(E)::QAR1(F)
- K(b);P_SPINS(c),S_FLIGHT,XR(G)::QAR2(F),XS(d)
- S(d);N_GUARD::R1(G),XS(c)
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