MESON Chess Problem Database
Problem Display
PID: 55210 (q6B/1B2Pr1r/2pR4/2R4p/p3k1pK/P5P1/Q2Ppn2/7b w - - 0 1)
Mansfield, Comins
1st HM., British Chess Magazine, 1972
#2
10 + 11
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Bxc6#
- 1...Qa7
- 2.Bxc6#
- 1...Qb8
- 2.Bxc6#
- 1...Qd8
- 2.Bxc6#
- 1...Qf8
- 2.Bxc6#
- 1...Qg8
- 2.Bxc6#
- 1...Qxh8
- 2.Bxc6#
- 1...Rf3
- 2.Re5#
- 2.Rd4#
- 2.Qc4#
- 2.Qe6#
- 1...Bf3
- 2.Re5#
- 2.Rd4#
- 2.Qc4#
- 2.Qe6#
- 1...Qa5
- Tries
- 1.Rc4+?
- 1...Kf5
- 2.Rf4#
- 1...Kf3!
- 1...Kf5
- 1.Rdxc6?
- threat
- 2.Qd5#
- 1...Kd3
- 2.Qc2#
- 1...Kf3
- 2.Rf6#
- 1...Qd8
- 2.Rd6#
- 1...Rf5!
- threat
- 1.Re6+?
- 1...Kd3
- 2.Rc3#
- 2.Re3#
- 2.Qc2#
- 1...Kf3!
- 1...Kd3
- 1.Qb1+?
- 1...Sd3
- 2.Qxd3#
- 1...Kf3!
- 1...Sd3
- 1.Qb3?
- threat
- 2.Re5#
- 2.Rd4#
- 2.Re6#
- 2.Qe3#
- 1...Qxh8
- 2.Bxc6#
- 2.Qe3#
- 1...Rxe7
- 2.Rd4#
- 2.Qe3#
- 1...Rxh8
- 2.Qe3#
- 1...Sd3
- 2.Qxd3#
- 1...e1Q
- 2.Re5#
- 2.Rd4#
- 2.Re6#
- 1...e1R
- 2.Re5#
- 2.Rd4#
- 2.Re6#
- 1...Rf5
- 2.Rc4#
- 2.Rd4#
- 2.Qe3#
- 1...Qa5
- 2.Bxc6#
- 2.Rd4#
- 2.Re6#
- 2.Qe3#
- 1...Qb8
- 2.Bxc6#
- 2.Re5#
- 2.Rd4#
- 2.Qe3#
- 1...Qc8
- 2.Re5#
- 2.Rd4#
- 2.Qe3#
- 1...Qd8
- 2.Bxc6#
- 2.Re5#
- 2.Re6#
- 2.Qe3#
- 1...Rf3
- 2.Re5#
- 2.Rd4#
- 2.Re6#
- 2.Qc4#
- 2.Qe6#
- 2.Qb4#
- 1...Rf6
- 2.Qe3#
- 1...Rfg7
- 2.Qe3#
- 1...Rh6
- 2.Re5#
- 2.Rd4#
- 2.Qe3#
- 1...Rhg7
- 2.Qe3#
- 1...Sd1
- 2.Re5#
- 2.Rd4#
- 2.Re6#
- 2.Qd3#
- 1...axb3!
- threat
- 1.Qxf7?
- threat
- 2.Rc4#
- 2.Re5#
- 2.Rd4#
- 2.Qf4#
- 2.Qf5#
- 1...Qxh8
- 2.Bxc6#
- 2.Qf4#
- 2.Qf5#
- 1...Rxh8
- 2.Qf4#
- 2.Qf5#
- 1...Qa5
- 2.Bxc6#
- 2.Rc4#
- 2.Rd4#
- 2.Qf4#
- 2.Qf5#
- 2.e8Q#
- 2.e8R#
- 1...Qa6
- 2.Re5#
- 2.Rd4#
- 2.Qf4#
- 2.Qf5#
- 2.e8Q#
- 2.e8R#
- 1...Qa7
- 2.Bxc6#
- 2.Re5#
- 2.Rd4#
- 2.Qf4#
- 2.Qf5#
- 2.e8Q#
- 2.e8R#
- 1...Qc8
- 2.Rc4#
- 2.Re5#
- 2.Rd4#
- 2.Qf4#
- 1...Qd8
- 2.Bxc6#
- 2.Rc4#
- 2.Re5#
- 2.Qf4#
- 2.Qf5#
- 1...Qf8
- 2.Bxc6#
- 2.Rc4#
- 2.Re5#
- 2.Rd4#
- 1...Rg7
- 2.Qf4#
- 2.Qf5#
- 1...Sd3
- 2.Rc4#
- 2.Rd4#
- 2.Qf5#
- 1...Sh3
- 2.Rc4#
- 2.Re5#
- 2.Rd4#
- 2.Qf5#
- 1...Rxf7!
- threat
- 1.Qc2+?
- 1...Sd3
- 2.Qxd3#
- 1...Kf3!
- 1...Sd3
- 1.Rc4+?
- Keys
- 1.Rcxc6!
- threat
- 2.Qd5#
- 1...Kf3
- 2.Rc3#
- 1...Kf5
- 2.Qe6#
- 1...Qa5
- 2.Rc5#
- 1...Rf5
- 2.Rc4#
- threat
- 1.Rcxc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- Q(k);N_GUARD::B(H),XP(h)
- Q(k);N_GUARD,P_PINP(I)::B(H),XP(h)
- Q(k);N_GUARD,XB(J)::B(H),XP(h)
- Tries
- Try
- R(F);CHECK
- Vars
- K(e);N_SPINP(h),OGATE,S_FLIGHT::R1(F)
- Refutation
- K(e);S_FLIGHT
- Try
- R(G);XP(h)
- Threat
- QAB1(A)
- Vars
- K(e);S_FLIGHT::QAB1(A)
- K(e);S_FLIGHT::B(H)+R(G),DCHECK
- Q(k);N_GUARD,P_PINP(I)::B(H)+R(G)
- Refutation
- R(i);
- Try
- R(G);CHECK
- Refutation
- K(e);S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAB1(A),XS(c)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(j);XB(J)::QAR1(A)
- S(c);N_GUARD::QAB1(A),XS(c)
- R(i);::QAR1(A)
- R(j);::QAR1(A)
- Refutation
- P(d);XQ(A)
- Try
- Q(A);XR(i)
- Threat
- DUALS(5)
- Refutation
- R(j);XQ(A)
- Try
- Q(A);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAB1(A),XS(c)
- Refutation
- K(e);S_FLIGHT
- Try
- Actual
- R(F);XP(h)
- Threat
- QAB1(A)
- Vars
- K(e);S_FLIGHT::B(H)+R(F),DCHECK
- K(e);S_FLIGHT::QAB1(A)
- Q(k);N_GUARD::B(H)+R(F)
- R(i);SBLOCK::B(H)+R(F),DCHECK
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