MESON Chess Problem Database
Problem Display
PID: 18577 (b7/4pK2/1Qp2p2/r2kP3/Nb2R3/2p5/n1P5/3r3B w - - 0 1)
Mansfield, Comins
The Tablet, 1956
(First published on Sat Sep 29 1956)
#2
7 + 10
| 3550 | Complete Mansfield/II | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qd4#
- 1...Rb1
- 2.Qd4#
- 1...Rc1
- 2.Qd4#
- 1...Re1
- 2.Qd4#
- 1...Rf1
- 2.Qd4#
- 1...Rg1
- 2.Qd4#
- 1...Rxh1
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Rc5
- 2.Qd8#
- 1...Ba3
- 2.Qb3#
- 1...Bc5
- 2.Qb3#
- 1...Bd6
- 2.Qb3#
- 1...c5
- 2.Qe6#
- 1...fxe5
- 2.Rd4#
- 1...Ra1
- Tries
- 1.Rxb4+?
- 1...Rxh1
- 2.Qd4#
- 1...Kxe5!
- 1...Rxh1
- 1.Rf4+?
- 1...Rxh1
- 2.Qd4#
- 1...Kxe5!
- 1...Rxh1
- 1.Rg4+?
- 1...Rxh1
- 2.Qd4#
- 1...Kxe5!
- 1...Rxh1
- 1.Rh4+?
- 1...Rxh1
- 2.Qd4#
- 1...Kxe5!
- 1...Rxh1
- 1.Qe3?
- threat
- 2.Sb6#
- 2.Rd4#
- 1...fxe5
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 1...c5
- 2.Rd4#
- 1...Rb5
- 2.Rd4#
- 1...Ra6
- 2.Rd4#
- 1...Bc5
- 2.Rd4#
- 1...Rxa4!
- threat
- 1.Qxa5+?
- 1...Bc5
- 2.Sb6#
- 2.Qxc5#
- 1...c5
- 2.Qxa8#
- 1...Bxa5!
- 1...Bc5
- 1.Qc5+?
- 1...Rxc5
- 2.Sb6#
- 1...Bxc5!
- 1...Rxc5
- 1.Qxb4?
- threat
- 2.Sb6#
- 2.Re1#
- 2.Qb3#
- 2.Qc4#
- 1...Rxh1
- 2.Sb6#
- 2.Qc4#
- 2.Qd4#
- 1...Rxa4
- 2.Re1#
- 1...fxe5
- 2.Sb6#
- 2.Rd4#
- 1...c5
- 2.Re1#
- 1...Rd2
- 2.Sb6#
- 2.Re2#
- 2.Qb3#
- 2.Qc4#
- 1...Rb1
- 2.Sb6#
- 2.Re1#
- 2.Qc4#
- 2.Qd4#
- 1...Re1
- 2.Sb6#
- 2.Rxe1#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 1...Rf1
- 2.Sb6#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 1...Rg1
- 2.Sb6#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 1...Rd3
- 2.Sb6#
- 2.Re3#
- 2.Qb3#
- 2.Qc4#
- 1...Rd4
- 2.Sb6#
- 2.Qxd4#
- 1...Rb5
- 2.Re1#
- 2.Qc4#
- 1...Rc5
- 2.Sb6#
- 2.Re1#
- 2.Qxc5#
- 1...Ra6
- 2.Re1#
- 2.Qc5#
- 2.Qb3#
- 2.Qc4#
- 1...Sc1
- 2.Sxc3#
- 2.Sb6#
- 2.Re1#
- 2.Qc4#
- 1...Sxb4!
- threat
- 1.Rxb4+?
- Keys
- 1.Sb2!
- threat
- 2.Re1#
- 1...Rxh1
- 2.Qd4#
- 1...cxb2
- 2.c4#
- 1...fxe5
- 2.Rd4#
- 1...Re1
- 2.Rxe1#
- 2.Qd4#
- 1...Rf1
- 2.Qd4#
- 1...Rg1
- 2.Qd4#
- 1...Rd2
- 2.Re2#
- 1...Rd3
- 2.Re3#
- 1...Rd4
- 2.Qxd4#
- 1...Rc5
- 2.Qd8#
- 1...Bc5
- 2.Qb3#
- 1...c5
- 2.Qe6#
- threat
- 1.Sb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- R(a);N_GUARD::QAR1(F)
- R(a);N_GUARD,XB(A)::QAR1(F)
- R(a);N_GUARD::QAR1(F),XR(a)
- R(e);S_CUTB(d)::QAR(F)
- B(d);OGATE::QAB(F)
- P(g);OGATE::QAB1(F)
- P(h);SBLOCK,XP(E)::B(A)+R(D),DCHECK
- Tries
- Try
- R(D);CHECK,XB(d)
- Vars
- R(a);XB(A)::QAR1(F)
- Refutation
- K(f);P-FLIGHT,XP(E)
- Try
- R(D);CHECK
- Vars
- R(a);XB(A)::QAR1(F)
- Refutation
- K(f);P-FLIGHT,XP(E)
- Try
- R(D);CHECK
- Vars
- R(a);XB(A)::QAR1(F)
- Refutation
- K(f);P-FLIGHT,XP(E)
- Try
- R(D);CHECK
- Vars
- R(a);XB(A)::QAR1(F)
- Refutation
- K(f);P-FLIGHT,XP(E)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(h);XP(E)::B(A)+R(D),DCHECK
- P(g);::B(A)+R(D),DCHECK
- R(e);::B(A)+R(D),DCHECK
- B(d);::B(A)+R(D),DCHECK
- Refutation
- R(e);XS(C)
- Try
- Q(F);CHECK,XR(e)
- Vars
- P(g);OGATEB,P_SPINP(g)::QAB(F),XB(j)
- Refutation
- B(d);XQ(F)
- Try
- Q(F);CHECK
- Vars
- R(e);SBLOCK,XQ(F)::S(C)
- Refutation
- B(d);XQ(F)
- Try
- Q(F);XB(d)
- Threat
- DUALS(4)
- Vars
- R(e);XS(C)::B(A)+R(D)
- P(g);::B(A)+R(D)
- Refutation
- S(b);XQ(F)
- Try
- Actual
- S(C);
- Threat
- B(A)+R(D)
- Vars
- R(a);N_GUARD,XB(A)::QAR1(F)
- P(c);OGATE,XS(C)::P(B)
- P(h);SBLOCK,XP(E)::B(A)+R(D),DCHECK
- R(a);N_GUARD::QAR1(F)
- R(a);N_GUARD::B(A)+R(D)
- R(a);N_GUARD::QAR1(F),XR(a)
- R(e);SBLOCK,S_CUTB(d)::QAR(F)
- B(d);OGATE,SBLOCK::QAB(F)
- P(g);OGATE,SBLOCK::QAB1(F)
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