MESON Chess Problem Database
Problem Display
PID: 17934 (B7/3K1N2/4p3/p2P1bR1/Rb1rk3/3p2p1/4n1N1/B4Q2 w - - 0 1)
Mansfield, Comins
Chess, 1952
#2
9 + 9
| 3550 | Complete Mansfield/II | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Rxd5+
- 2.Sd6#
- 1...Be1
- 2.d6#
- 1...Bd2
- 2.d6#
- 1...Ba3
- 2.d6#
- 1...Bc3
- 2.d6#
- 1...Bc5
- 2.d6#
- 1...Bd6
- 2.dxe6#
- 1...Be7
- 2.d6#
- 1...Bf8
- 2.d6#
- 1...Bh3
- 2.Re5#
- 1...Bg4
- 2.Re5#
- 1...Bg6
- 2.Re5#
- 1...Bh7
- 2.Re5#
- 1...Sc1
- 2.Qf4#
- 1...Sg1
- 2.Qf4#
- 1...Sc3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...d2
- 2.Qxe2#
- 1...exd5+
- 2.Qxf5#
- 1...e5+
- 2.Qxf5#
- 1...Rxd5+
- Tries
- 1.Kc8?
- 1...exd5+
- 2.Qxf5#
- 1...e5+
- 2.Qxf5#
- 1...Rxd5
- 2.Sd6#
- 1...d2
- 2.Qxe2#
- 1...Be1
- 2.dxe6#
- 2.d6#
- 1...Bd2
- 2.dxe6#
- 2.d6#
- 1...Ba3
- 2.dxe6#
- 2.d6#
- 1...Bc3
- 2.dxe6#
- 2.d6#
- 1...Bc5
- 2.dxe6#
- 2.d6#
- 1...Bd6
- 2.dxe6#
- 1...Be7
- 2.dxe6#
- 2.d6#
- 1...Bf8
- 2.dxe6#
- 2.d6#
- 1...Bh3
- 2.Re5#
- 1...Bg4
- 2.Re5#
- 1...Bg6
- 2.Re5#
- 1...Bh7
- 2.Re5#
- 1...Sc1
- 2.Qf4#
- 1...Sg1
- 2.Qf4#
- 1...Sc3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rc4+!
- 1...exd5+
- 1.Ke8?
- 1...Rxd5
- 2.Sd6#
- 1...exd5
- 2.Qxf5#
- 1...d2
- 2.Qxe2#
- 1...Be1
- 2.dxe6#
- 2.d6#
- 1...Bd2
- 2.dxe6#
- 2.d6#
- 1...Ba3
- 2.dxe6#
- 2.d6#
- 1...Bc3
- 2.dxe6#
- 2.d6#
- 1...Bc5
- 2.dxe6#
- 2.d6#
- 1...Bd6
- 2.dxe6#
- 1...Be7
- 2.dxe6#
- 2.d6#
- 1...Bf8
- 2.dxe6#
- 2.d6#
- 1...Bh3
- 2.Re5#
- 1...Bg4
- 2.Re5#
- 1...Bg6
- 2.Re5#
- 1...Bh7
- 2.Re5#
- 1...Sc1
- 2.Qf4#
- 1...Sg1
- 2.Qf4#
- 1...Sc3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...e5
- 2.Qxf5#
- 1...Rc4!
- 1...Rxd5
- 1.Bb2?
- 1...Rxd5+
- 2.Sd6#
- 1...exd5+
- 2.Qxf5#
- 1...e5+
- 2.Qxf5#
- 1...d2
- 2.Qxe2#
- 1...Be1
- 2.d6#
- 1...Bd2
- 2.d6#
- 1...Ba3
- 2.d6#
- 1...Bc3
- 2.d6#
- 1...Bc5
- 2.d6#
- 1...Bd6
- 2.dxe6#
- 1...Be7
- 2.d6#
- 1...Bf8
- 2.d6#
- 1...Bh3
- 2.Re5#
- 1...Bg4
- 2.Re5#
- 1...Bg6
- 2.Re5#
- 1...Bh7
- 2.Re5#
- 1...Sc1
- 2.Qf4#
- 1...Sg1
- 2.Qf4#
- 1...Sc3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rc4!
- 1...Rxd5+
- 1.Bc3?
- 1...Rxd5+
- 2.Sd6#
- 1...exd5+
- 2.Qxf5#
- 1...e5+
- 2.Qxf5#
- 1...Bxc3
- 2.d6#
- 1...Sxc3
- 2.Qf4#
- 1...d2
- 2.Qxe2#
- 1...Ba3
- 2.d6#
- 1...Bc5
- 2.d6#
- 1...Bd6
- 2.dxe6#
- 1...Be7
- 2.d6#
- 1...Bf8
- 2.d6#
- 1...Bh3
- 2.Re5#
- 1...Bg4
- 2.Re5#
- 1...Bg6
- 2.Re5#
- 1...Bh7
- 2.Re5#
- 1...Sc1
- 2.Qf4#
- 1...Sg1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rc4!
- 1...Rxd5+
- 1.Bc6?
- 1...Rxd5+
- 2.Sd6#
- 1...exd5+
- 2.Qxf5#
- 1...e5+
- 2.Qxf5#
- 1...d2
- 2.Qxe2#
- 1...Be1
- 2.d6#
- 1...Bd2
- 2.d6#
- 1...Ba3
- 2.d6#
- 1...Bc3
- 2.d6#
- 1...Bc5
- 2.d6#
- 1...Bd6
- 2.dxe6#
- 1...Be7
- 2.d6#
- 1...Bf8
- 2.d6#
- 1...Bh3
- 2.Re5#
- 1...Bg4
- 2.Re5#
- 1...Bg6
- 2.Re5#
- 1...Bh7
- 2.Re5#
- 1...Sc1
- 2.Qf4#
- 1...Sg1
- 2.Qf4#
- 1...Sc3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rc4!
- 1...Rxd5+
- 1.Bb7?
- 1...Rxd5+
- 2.Sd6#
- 1...exd5+
- 2.Qxf5#
- 1...e5+
- 2.Qxf5#
- 1...d2
- 2.Qxe2#
- 1...Be1
- 2.d6#
- 1...Bd2
- 2.d6#
- 1...Ba3
- 2.d6#
- 1...Bc3
- 2.d6#
- 1...Bc5
- 2.d6#
- 1...Bd6
- 2.dxe6#
- 1...Be7
- 2.d6#
- 1...Bf8
- 2.d6#
- 1...Bh3
- 2.Re5#
- 1...Bg4
- 2.Re5#
- 1...Bg6
- 2.Re5#
- 1...Bh7
- 2.Re5#
- 1...Sc1
- 2.Qf4#
- 1...Sg1
- 2.Qf4#
- 1...Sc3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rc4!
- 1...Rxd5+
- 1.Rxb4?
- threat
- 2.d6#
- 1...exd5+
- 2.Qxf5#
- 1...e5+
- 2.Qxf5#
- 1...Rxb4
- 2.Sd6#
- 1...d2
- 2.Qxe2#
- 1...Sc3
- 2.Qf4#
- 1...Sf4
- 2.Rxd4#
- 2.Qxf4#
- 1...axb4!
- threat
- 1.Rg4+?
- 1...Sf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Bxg4!
- 1...Sf4
- 1.Rxf5?
- threat
- 2.Sg5#
- 2.Re5#
- 2.Qf3#
- 1...Rxd5+
- 2.Sd6#
- 1...Sf4
- 2.Rxf4#
- 2.Re5#
- 2.Qxf4#
- 1...d2
- 2.Qf3#
- 1...Bd2
- 2.Sd6#
- 2.Re5#
- 2.Qf3#
- 2.d6#
- 1...Bd6
- 2.Sg5#
- 2.Sxd6#
- 2.Qf3#
- 2.dxe6#
- 1...Be7
- 2.Re5#
- 2.Qf3#
- 2.d6#
- 1...Sg1
- 2.Sg5#
- 2.Rf4#
- 2.Re5#
- 2.Qf4#
- 1...e5
- 2.Sg5#
- 2.Rxe5#
- 2.Qf3#
- 1...exf5!
- threat
- 1.Qf2?
- threat
- 2.Qe3#
- 1...Rxd5+
- 2.Sd6#
- 1...exd5+
- 2.Qxf5#
- 1...e5+
- 2.Qxf5#
- 1...Bd2
- 2.d6#
- 1...gxf2!
- threat
- 1.Kc8?
- Keys
- 1.Rh5!
- 1...Rxd5+
- 2.Sd6#
- 1...exd5+
- 2.Qxf5#
- 1...e5+
- 2.Qxf5#
- 1...d2
- 2.Qxe2#
- 1...Rc4
- 2.Sg5#
- 1...Be1
- 2.d6#
- 1...Bd2
- 2.d6#
- 1...Ba3
- 2.d6#
- 1...Bc3
- 2.d6#
- 1...Bc5
- 2.d6#
- 1...Bd6
- 2.dxe6#
- 1...Be7
- 2.d6#
- 1...Bf8
- 2.d6#
- 1...Bh3
- 2.Re5#
- 1...Bg4
- 2.Re5#
- 1...Bg6
- 2.Re5#
- 1...Bh7
- 2.Re5#
- 1...Sc1
- 2.Qf4#
- 1...Sg1
- 2.Qf4#
- 1...Sc3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rxd5+
- 1.Rh5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(e);CHECK,P_SPINB(d),P_SPINR(e),XP(E)::S(H)
- B(d);P_SPINR(e)::B(I)+P(E)
- B(d);N_PINP(E),P_SPINR(e)::B(I)+P(E),XP(i)
- B(h);OGATE::R1(F)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- P(b);N_GUARD::QAR2(B),XS(a)
- P(i);CHECK,N_GUARD,P_SPINP(i),XP(E)::QAB1(B),XB(h)
- P(i);CHECK,N_GUARD::QAB1(B),XB(h)
- Tries
- Try
- K(G);N_SPINP(E),S_FLIGHT
- Vars
- P(i);CHECK,N_GUARD,P_SPINP(i),XP(E)::QAB1(B),XB(h)
- P(i);CHECK,N_GUARD::QAB1(B),XB(h)
- R(e);P_SPINB(d),P_SPINR(e),XP(E)::S(H)
- P(b);N_GUARD::QAR2(B),XS(a)
- B(d);P_SPINR(e)::B(I)+P(E),XP(i)
- B(h);OGATE::R1(F)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- Refutation
- R(e);CHECK
- Try
- K(G);N_SPINP(E),S_FLIGHT
- Vars
- R(e);P_SPINB(d),P_SPINR(e),XP(E)::S(H)
- P(i);N_GUARD,P_SPINP(i),XP(E)::QAB1(B),XB(h)
- P(b);N_GUARD::QAR2(B),XS(a)
- B(d);P_SPINR(e)::B(I)+P(E),XP(i)
- B(h);OGATE::R1(F)
- B(h);OGATE,P_PINS(H)::R1(F)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- P(i);N_GUARD::QAB1(B),XB(h)
- Refutation
- R(e);
- Try
- B(A);
- Vars
- R(e);CHECK,P_SPINB(d),P_SPINR(e),XP(E)::S(H)
- P(i);CHECK,N_GUARD,P_SPINP(i),XP(E)::QAB1(B),XB(h)
- P(i);CHECK,N_GUARD::QAB1(B),XB(h)
- P(b);N_GUARD::QAR2(B),XS(a)
- B(d);P_SPINR(e)::B(I)+P(E)
- B(d);N_PINP(E),P_SPINR(e)::B(I)+P(E),XP(i)
- B(h);OGATE::R1(F)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- Refutation
- R(e);N_PINP(E)
- Try
- B(A);
- Vars
- R(e);CHECK,P_SPINB(d),P_SPINR(e),XP(E)::S(H)
- P(i);CHECK,N_GUARD,P_SPINP(i),XP(E)::QAB1(B),XB(h)
- P(i);CHECK,N_GUARD::QAB1(B),XB(h)
- B(d);P_SPINR(e),XB(A)::B(I)+P(E)
- S(a);N_GUARD,XB(A)::QAR1(B)
- P(b);N_GUARD::QAR2(B),XS(a)
- B(d);P_SPINR(e)::B(I)+P(E)
- B(d);N_PINP(E),P_SPINR(e)::B(I)+P(E),XP(i)
- B(h);OGATE::R1(F)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- Refutation
- R(e);N_PINP(E)
- Try
- B(I);
- Vars
- R(e);CHECK,P_SPINB(d),P_SPINR(e),XP(E)::S(H)
- P(i);CHECK,N_GUARD,P_SPINP(i),XP(E)::QAB1(B),XB(h)
- P(i);CHECK,N_GUARD::QAB1(B),XB(h)
- P(b);N_GUARD::QAR2(B),XS(a)
- B(d);P_SPINR(e)::B(I)+P(E)
- B(d);N_PINP(E),P_SPINR(e)::B(I)+P(E),XP(i)
- B(h);OGATE::R1(F)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- Refutation
- R(e);N_PINP(E)
- Try
- B(I);
- Vars
- R(e);CHECK,P_SPINB(d),P_SPINR(e),XP(E)::S(H)
- P(i);CHECK,N_GUARD,P_SPINP(i),XP(E)::QAB1(B),XB(h)
- P(i);CHECK,N_GUARD::QAB1(B),XB(h)
- P(b);N_GUARD::QAR2(B),XS(a)
- B(d);P_SPINR(e)::B(I)+P(E)
- B(d);N_PINP(E),P_SPINR(e)::B(I)+P(E),XP(i)
- B(h);OGATE::R1(F)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- Refutation
- R(e);N_PINP(E)
- Try
- R(D);P_PINR(e),XB(d)
- Threat
- B(I)+P(E)
- Vars
- P(i);CHECK,N_GUARD,P_SPINP(i),XP(E)::QAB1(B),XB(h)
- P(i);CHECK,N_GUARD::QAB1(B),XB(h)
- R(e);N_PINP(E),N_SPINR(e),XR(D)::S(H)
- P(b);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- Refutation
- P(g);N_SPINR(e),XR(D)
- Try
- R(F);CHECK
- Refutation
- B(h);XR(F)
- Try
- R(F);XB(h)
- Threat
- DUALS(3)
- Vars
- R(e);CHECK,P_SPINB(d),P_SPINR(e),XP(E)::S(H)
- P(b);::QAB1(B)
- Refutation
- P(i);XR(F)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- R(e);CHECK,P_SPINB(d),P_SPINR(e),XP(E)::S(H)
- P(i);CHECK,N_GUARD,P_SPINP(i),XP(E)::QAB1(B),XB(h)
- P(i);CHECK,N_GUARD::QAB1(B),XB(h)
- B(d);P_SPINR(e)::B(I)+P(E)
- Refutation
- P(c);XQ(B)
- Try
- Actual
- R(F);
- Vars
- R(e);CHECK,P_SPINB(d),P_SPINR(e),XP(E)::S(H)
- P(i);CHECK,N_GUARD,P_SPINP(i),XP(E)::QAB1(B),XB(h)
- P(i);CHECK,N_GUARD::QAB1(B),XB(h)
- P(b);N_GUARD::QAR2(B),XS(a)
- R(e);N_PINP(E)::S(H)
- B(d);P_SPINR(e)::B(I)+P(E)
- B(d);N_PINP(E),P_SPINR(e)::B(I)+P(E),XP(i)
- B(h);OGATE::R1(F)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).