MESON Chess Problem Database
Problem Display
PID: 158545 (8/2QB4/8/3k2p1/3n2R1/2B5/1Kn5/8 w - - 0 1)
Senior, A
Chess, 1955
#2
5 + 4
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Rxd4#
- 1...Se1
- 2.Rxd4#
- 1...Sa3
- 2.Rxd4#
- 1...Se3
- 2.Rxd4#
- 1...Sb4
- 2.Rxd4#
- 1...Se2
- 2.Qe5#
- 2.Qc6#
- 1...Sb3
- 2.Qe5#
- 2.Qc6#
- 1...Sf3
- 2.Qc6#
- 1...Sb5
- 2.Qe5#
- 2.Qc6#
- 1...Sf5
- 2.Qe5#
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Se6
- 2.Qe5#
- 2.Qc6#
- 1...Sa1
- Tries
- 1.Kb1?
- 1...Sc6
- 2.Qxc6#
- 1...Sa1
- 2.Rxd4#
- 1...Se1
- 2.Rxd4#
- 1...Se3
- 2.Rxd4#
- 1...Sb4
- 2.Rxd4#
- 1...Se2
- 2.Qe5#
- 2.Qc6#
- 1...Sb3
- 2.Qe5#
- 2.Qc6#
- 1...Sf3
- 2.Qc6#
- 1...Sb5
- 2.Qe5#
- 2.Qc6#
- 1...Sf5
- 2.Qe5#
- 2.Qc6#
- 1...Se6
- 2.Qe5#
- 2.Qc6#
- 1...Sa3+!
- 1...Sc6
- 1.Ka2?
- 1...Sc6
- 2.Qxc6#
- 1...Sa1
- 2.Rxd4#
- 1...Se1
- 2.Rxd4#
- 1...Sa3
- 2.Rxd4#
- 1...Se3
- 2.Rxd4#
- 1...Se2
- 2.Qe5#
- 2.Qc6#
- 1...Sb3
- 2.Qe5#
- 2.Qc6#
- 1...Sf3
- 2.Qc6#
- 1...Sb5
- 2.Qe5#
- 2.Qc6#
- 1...Sf5
- 2.Qe5#
- 2.Qc6#
- 1...Se6
- 2.Qe5#
- 2.Qc6#
- 1...Sb4+!
- 1...Sc6
- 1.Bb4?
- threat
- 2.Qc5#
- 1...Sb3
- 2.Qd6#
- 1...Sc6
- 2.Qd6#
- 1...Se6
- 2.Bc6#
- 2.Qd6#
- 1...Sxb4!
- threat
- 1.Bxd4?
- threat
- 2.Qc5#
- 2.Qc6#
- 1...Sb4
- 2.Qc5#
- 1...Sxd4!
- threat
- 1.Re4?
- threat
- 2.Re5#
- 1...Sc6
- 2.Qxc6#
- 1...Sf3
- 2.Qc6#
- 1...Kxe4!
- threat
- 1.Rxg5+?
- 1...Sf5
- 2.Qc6#
- 1...Ke4!
- 1...Sf5
- 1.Qe5+?
- 1...Kc4
- 2.Bb5#
- 2.Qb5#
- 1...Kxe5!
- 1...Kc4
- 1.Qc6+?
- 1...Ke5
- 2.Re4#
- 2.Qe6#
- 1...Sxc6!
- 1...Ke5
- 1.Kb1?
- Keys
- 1.Qb6!
- 1...Kc4
- 2.Qb5#
- 1...Ke5
- 2.Qe6#
- 1...Sa1
- 2.Qxd4#
- 1...Se1
- 2.Qxd4#
- 1...Sa3
- 2.Qxd4#
- 1...Se3
- 2.Qxd4#
- 1...Sb4
- 2.Qxd4#
- 1...Se2
- 2.Be6#
- 2.Qc6#
- 1...Sb3
- 2.Be6#
- 2.Qc6#
- 1...Sf3
- 2.Be6#
- 2.Qc6#
- 1...Sb5
- 2.Be6#
- 2.Qc6#
- 1...Sf5
- 2.Be6#
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Se6
- 2.Bxe6#
- 2.Qc6#
- 1...Kc4
- 1.Qb6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(a);N_GUARD::R1(C),XS(b)
- S(b);N_GUARD::QAB1(D)
- S(b);N_GUARD::QAB1(D),XS(b)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(b);N_GUARD::QAB1(D),XS(b)
- S(a);N_GUARD::R1(C),XS(b)
- S(b);N_GUARD::QAB1(D)
- Refutation
- S(a);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- S(b);N_GUARD::QAB1(D),XS(b)
- S(a);N_GUARD::R1(C),XS(b)
- S(b);N_GUARD::QAB1(D)
- Refutation
- S(a);CHECK
- Try
- B(B);
- Threat
- QAR1(D)
- Vars
- S(b);::QAR1(D)
- Refutation
- S(a);XB(B)
- Try
- B(B);XS(b)
- Threat
- DUALS(2)
- Vars
- S(a);::QAR1(D)
- Refutation
- S(a);XB(B)
- Try
- R(C);
- Threat
- R1(C)
- Vars
- S(b);N_GUARD::QAB1(D),XS(b)
- S(b);N_GUARD::QAB1(D)
- Refutation
- K(c);S_FLIGHT,XR(C)
- Try
- R(C);CHECK,XP(d)
- Vars
- S(b);P_SPINS(b)::QAB1(D)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(D);CHECK
- Refutation
- K(c);P-FLIGHT,P_SPINS(b),XQ(D)
- Try
- Q(D);CHECK
- Refutation
- S(b);XQ(D)
- Try
- Actual
- Q(D);
- Vars
- K(c);P_SPINS(b),S_FLIGHT::QAB1(D)
- K(c);P-FLIGHT,P_SPINS(b)::QAR1(D)
- S(a);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAB1(D),XS(b)
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