MESON Chess Problem Database
Problem Display
PID: 21994 (7K/8/8/8/4Q3/Bp6/bN2RN1p/b1k3rR w - - 0 1)
Mansfield, Comins
Bristol Observer, 1923
#2
7 + 6
| 3360 | Simple Two-move Themes | 1924 |
| 3202 | Complete Mansfield/I | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rhxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Rxh1
- 2.Qxh1#
- 1...Bxb2+
- 2.Bxb2#
- 1...Bb1
- 2.Qe3#
- 2.Qf4#
- 1...Rd1
- Tries
- 1.Sh3?
- 1...Rxh1
- 2.Qxh1#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rhxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Bb1
- 2.Qe3#
- 2.Qf4#
- 1...Bxb2+!
- 1...Rxh1
- 1.Sg4?
- 1...Rxh1
- 2.Qxh1#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rhxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Bb1
- 2.Qe3#
- 2.Qf4#
- 1...Bxb2+!
- 1...Rxh1
- 1.Bb4?
- 1...Rxh1
- 2.Qxh1#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rhxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Bb1
- 2.Qe3#
- 2.Qf4#
- 1...Bxb2+!
- 1...Rxh1
- 1.Re1+?
- 1...Kd2
- 2.Bb4#
- 1...Rxe1!
- 1...Kd2
- 1.Rc2+?
- 1...Kb1
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...bxc2!
- 1...Kb1
- 1.Qd3?
- 1...Bxb2+
- 2.Bxb2#
- 1...Rd1
- 2.Rxd1#
- 2.Qxd1#
- 1...Re1
- 2.Rhxe1#
- 2.Rexe1#
- 1...Rf1
- 2.Rxf1#
- 1...Bb1
- 2.Qd2#
- 2.Qe3#
- 1...Rxh1!
- 1...Bxb2+
- 1.Qf5?
- 1...Bxb2+
- 2.Bxb2#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rhxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Bb1
- 2.Qf4#
- 2.Qg5#
- 1...Rxh1!
- 1...Bxb2+
- 1.Qg6?
- 1...Bxb2+
- 2.Bxb2#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rhxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Bb1
- 2.Qg5#
- 2.Qh6#
- 1...Rxh1!
- 1...Bxb2+
- 1.Qh7?
- 1...Bxb2+
- 2.Bxb2#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rhxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Bb1
- 2.Qh6#
- 1...Rxh1!
- 1...Bxb2+
- 1.Sh3?
- Keys
- 1.Kh7!
- 1...Rxh1
- 2.Qxh1#
- 1...Bxb2
- 2.Bxb2#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rhxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Bb1
- 2.Sbd3#
- 1...Rxh1
- 1.Kh7!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(c);OGATE::R1(A),XR(c)
- R(c);OGATE::R(A),XR(c)
- R(c);N_SPINR(c),OGATE,XR(A)::QAR(F),XR(c)
- B(a);CHECK,OGATE,P_SPINB(a),XS(B)::B(E),XB(a)
- Tries
- Try
- S(D);
- Vars
- R(c);N_SPINR(c),OGATE,XR(A)::QAR(F),XR(c)
- R(c);OGATE::R1(A),XR(c)
- R(c);OGATE::R(A),XR(c)
- Refutation
- B(a);CHECK,P_SPINB(a),XS(B)
- Try
- S(D);
- Vars
- R(c);N_SPINR(c),OGATE,XR(A)::QAR(F),XR(c)
- R(c);OGATE::R1(A),XR(c)
- R(c);OGATE::R(A),XR(c)
- Refutation
- B(a);CHECK,P_SPINB(a),XS(B)
- Try
- B(E);
- Vars
- R(c);N_SPINR(c),OGATE,XR(A)::QAR(F),XR(c)
- R(c);OGATE::R1(A),XR(c)
- R(c);OGATE::R(A),XR(c)
- Refutation
- B(a);CHECK,XS(B)
- Try
- R(C);CHECK,N_PINR(c)
- Vars
- K(b);S_FLIGHT::B(E)
- Refutation
- R(c);P_SPINR(c),XR(C)
- Try
- R(C);CHECK
- Refutation
- P(f);XR(C)
- Try
- Q(F);
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XS(B)::B(E),XB(a)
- R(c);OGATE::R(A),XR(c)
- Refutation
- R(c);N_SPINR(c),XR(A)
- Try
- Q(F);
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XS(B)::B(E),XB(a)
- R(c);OGATE::R1(A),XR(c)
- R(c);OGATE::R(A),XR(c)
- Refutation
- R(c);N_SPINR(c),XR(A)
- Try
- Q(F);
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XS(B)::B(E),XB(a)
- R(c);OGATE::R1(A),XR(c)
- R(c);OGATE::R(A),XR(c)
- Refutation
- R(c);N_SPINR(c),XR(A)
- Try
- Q(F);
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XS(B)::B(E),XB(a)
- R(c);OGATE::R1(A),XR(c)
- R(c);OGATE::R(A),XR(c)
- B(d);SBLOCK::QAB(F)
- Refutation
- R(c);N_SPINR(c),XR(A)
- Try
- Actual
- K(G);N_SPINS(B),P-FLIGHT
- Vars
- R(c);N_SPINR(c),OGATE,XR(A)::QAR(F),XR(c)
- B(a);OGATE,P_SPINB(a),XS(B)::B(E),XB(a)
- R(c);OGATE::R1(A),XR(c)
- R(c);OGATE::R(A),XR(c)
- B(d);P_PINQ(F),SBLOCK::B(E)+S(B),DCHECK
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