MESON Chess Problem Database
Problem Display
PID: 16553 (8/8/8/1QK2p2/4bB2/2k5/2r5/2RB4 w - - 0 1)
Stewart, John
Chess, 1941
#2
5 + 4
SOLUTION
- SOUND
- Sets
- 1...Rxc1
- 2.Qb3#
- 1...Bh1
- 2.Rxc2#
- 1...Bg2
- 2.Rxc2#
- 1...Bd3
- 2.Qb4#
- 1...Bf3
- 2.Rxc2#
- 1...Bd5
- 2.Rxc2#
- 1...Bc6
- 2.Rxc2#
- 1...Bb7
- 2.Rxc2#
- 1...Ba8
- 2.Rxc2#
- 1...Rxc1
- Tries
- 1.Bxc2?
- threat
- 2.Bd3#
- 2.Bxe4#
- 2.Qb3#
- 2.Qb4#
- 1...Bh1
- 2.Bb1#
- 2.Bd1#
- 2.Bd3#
- 2.Ba4#
- 2.Be4#
- 2.Bxf5#
- 2.Qb3#
- 2.Qb4#
- 1...Bg2
- 2.Bb1#
- 2.Bd1#
- 2.Bd3#
- 2.Ba4#
- 2.Be4#
- 2.Bxf5#
- 2.Qb3#
- 2.Qb4#
- 1...Bd3
- 2.Bxd3#
- 2.Qb3#
- 2.Qb4#
- 1...Bf3
- 2.Bb1#
- 2.Bd1#
- 2.Bd3#
- 2.Ba4#
- 2.Be4#
- 2.Bxf5#
- 2.Qb3#
- 2.Qb4#
- 1...Bd5
- 2.Bb1#
- 2.Bd1#
- 2.Bd3#
- 2.Ba4#
- 2.Be4#
- 2.Bxf5#
- 2.Qb4#
- 1...Bc6
- 2.Bb1#
- 2.Bd1#
- 2.Bd3#
- 2.Ba4#
- 2.Be4#
- 2.Bxf5#
- 2.Qb3#
- 2.Qb4#
- 1...Bb7
- 2.Bb1#
- 2.Bd1#
- 2.Bd3#
- 2.Ba4#
- 2.Be4#
- 2.Bxf5#
- 2.Qb3#
- 2.Qb4#
- 1...Ba8
- 2.Bb1#
- 2.Bd1#
- 2.Bd3#
- 2.Ba4#
- 2.Be4#
- 2.Bxf5#
- 2.Qb3#
- 2.Qb4#
- 1...Bxc2!
- threat
- 1.Be3?
- 1...Rxc1
- 2.Qb3#
- 1...Bh1
- 2.Rxc2#
- 1...Bg2
- 2.Rxc2#
- 1...Bd3
- 2.Qb4#
- 1...Bf3
- 2.Rxc2#
- 1...Bd5
- 2.Rxc2#
- 1...Bc6
- 2.Rxc2#
- 1...Bb7
- 2.Rxc2#
- 1...Ba8
- 2.Rxc2#
- 1...f4!
- 1...Rxc1
- 1.Bg5?
- 1...Rxc1
- 2.Qb3#
- 1...Bh1
- 2.Rxc2#
- 1...Bg2
- 2.Rxc2#
- 1...Bd3
- 2.Qb4#
- 1...Bf3
- 2.Rxc2#
- 1...Bd5
- 2.Rxc2#
- 1...Bc6
- 2.Rxc2#
- 1...Bb7
- 2.Rxc2#
- 1...Ba8
- 2.Rxc2#
- 1...f4!
- 1...Rxc1
- 1.Bh6?
- 1...Rxc1
- 2.Qb3#
- 1...Bh1
- 2.Rxc2#
- 1...Bg2
- 2.Rxc2#
- 1...Bd3
- 2.Qb4#
- 1...Bf3
- 2.Rxc2#
- 1...Bd5
- 2.Rxc2#
- 1...Bc6
- 2.Rxc2#
- 1...Bb7
- 2.Rxc2#
- 1...Ba8
- 2.Rxc2#
- 1...f4!
- 1...Rxc1
- 1.Ra1?
- threat
- 2.Ra3#
- 1...Ra2
- 2.Qb3#
- 1...Rb2
- 2.Qc4#
- 1...Bd5!
- threat
- 1.Rb1?
- threat
- 2.Rb3#
- 2.Qc4#
- 2.Qb3#
- 1...Rb2
- 2.Qc4#
- 1...Bd3
- 2.Rb3#
- 2.Qb3#
- 2.Qb4#
- 2.Qa5#
- 1...Bd5!
- threat
- 1.Qa4?
- threat
- 2.Qa3#
- 1...Kd3+
- 2.Qxc2#
- 1...Bd5
- 2.Qxc2#
- 1...Kb2+!
- threat
- 1.Qb2+?
- 1...Kd3+
- 2.Qxc2#
- 1...Kxb2+!
- 1...Kd3+
- 1.Bxc2?
- Keys
- 1.Qb1!
- 1...Kd3+
- 2.Qxc2#
- 1...Rxc1
- 2.Qb3#
- 1...Bd5
- 2.Qxc2#
- 1...Bh1
- 2.Qxc2#
- 1...Bg2
- 2.Qxc2#
- 1...Bd3
- 2.Qb4#
- 1...Bf3
- 2.Qxc2#
- 1...Bc6
- 2.Qxc2#
- 1...Bb7
- 2.Qxc2#
- 1...Ba8
- 2.Qxc2#
- 1...Kd3+
- 1.Qb1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(a);N_SPINR(a),XR(A)::QAR1(D)
- B(c);N_GUARD::R1(A),XR(a)
- B(c);SBLOCK::QAB1(D)
- Tries
- Try
- B(B);XR(a)
- Threat
- DUALS(4)
- Refutation
- B(c);P_SPINB(c),XB(B)
- Try
- B(C);
- Vars
- R(a);N_SPINR(a),XR(A)::QAR1(D)
- B(c);N_GUARD::R1(A),XR(a)
- B(c);SBLOCK::QAB1(D)
- Refutation
- P(d);
- Try
- B(C);
- Vars
- R(a);N_SPINR(a),XR(A)::QAR1(D)
- B(c);N_GUARD::R1(A),XR(a)
- B(c);SBLOCK::QAB1(D)
- Refutation
- P(d);
- Try
- B(C);
- Vars
- R(a);N_SPINR(a),XR(A)::QAR1(D)
- B(c);N_GUARD::R1(A),XR(a)
- B(c);SBLOCK::QAB1(D)
- Refutation
- P(d);
- Try
- R(A);N_PINR(a)
- Threat
- R(A)
- Vars
- R(a);::QAR1(D)
- R(a);SBLOCK::QAR1(D)
- Refutation
- B(c);
- Try
- R(A);N_PINR(a)
- Threat
- DUALS(3)
- Vars
- R(a);::QAR1(D)
- Refutation
- B(c);
- Try
- Q(D);
- Threat
- QAR2(D)
- Vars
- K(b);CHECK,N_SPINR(a),P-FLIGHT::QAB1(D),XR(a)
- B(c);N_GUARD::QAR1(D),XR(a)
- Refutation
- K(b);CHECK,N_SPINR(a),S_FLIGHT
- Try
- Q(D);CHECK
- Vars
- K(b);CHECK,N_SPINR(a),P-FLIGHT::QAB1(D),XR(a)
- Refutation
- K(b);CHECK,N_SPINR(a),S_FLIGHT,XQ(D)
- Try
- Actual
- Q(D);
- Vars
- K(b);CHECK,P-FLIGHT::QAB1(D),XR(a)
- R(a);N_SPINR(a),XR(A)::QAR1(D)
- B(c);N_GUARD::QAR1(D),XR(a)
- B(c);SBLOCK::QAB1(D)
Developed and maintained by Brian Stephenson.
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