MESON Chess Problem Database
Problem Display
PID: 55268 (8/4B1p1/P2p2Pp/3pnK2/QP6/2RNkN1R/3p3p/3B2br w - - 0 1)
Mansfield, Comins
Comm., Arbeiter Zeitung, 1973
#2
11 + 10
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Bf2
- 2.Sdxe5#
- 1...d4
- 2.Sfxe5#
- 1...h5
- 2.Bg5#
- 1...Bf2
- Tries
- 1.Sf2+?
- 1...Sd3
- 2.Sg4#
- 1...Kxf2!
- 1...Sd3
- 1.Sfe1+?
- 1...Sf3
- 2.Sc2#
- 1...Kd4!
- 1...Sf3
- 1.Sxg1+?
- 1...Kd4
- 2.Se2#
- 1...Sf3!
- 1...Kd4
- 1.Sd4+?
- 1...Sf3
- 2.Sc2#
- 1...Kxd4!
- 1...Sf3
- 1.Bh4?
- threat
- 2.Sdxe5#
- 1...Sxd3
- 2.Qe8#
- 1...Sxg6
- 2.Sc1#
- 2.Sde1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Sde5#
- 1...Sc4
- 2.Sc1#
- 2.Sde1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Sde5#
- 1...Sg4
- 2.Sc1#
- 2.Sde1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Sde5#
- 1...Sc6
- 2.Sc1#
- 2.Sde1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Sde5#
- 1...Sd7
- 2.Sc1#
- 2.Sde1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Sde5#
- 1...Sf7
- 2.Sc1#
- 2.Sde1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Sde5#
- 1...d4
- 2.Sfxe5#
- 1...Sxf3!
- threat
- 1.Bf6?
- 1...Sxd3
- 2.Bd4#
- 1...Sxf3
- 2.Rxf3#
- 2.Qe8#
- 1...Sxg6
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sg5#
- 2.Bd4#
- 1...Bf2
- 2.Sdxe5#
- 1...Sc4
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sg5#
- 2.Bd4#
- 1...Sg4
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sg5#
- 2.Bd4#
- 1...Sc6
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sg5#
- 1...Sd7
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sg5#
- 2.Bd4#
- 1...Sf7
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sg5#
- 2.Bd4#
- 1...d4
- 2.Sfxe5#
- 1...h5
- 2.Bg5#
- 1...gxf6!
- 1...Sxd3
- 1.b5?
- threat
- 2.Sfxe5#
- 2.Qd4#
- 2.Qf4#
- 1...Sxd3
- 2.Qd4#
- 1...Sxf3
- 2.Rxf3#
- 2.Qf4#
- 1...Sxg6
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sfe5#
- 2.Sg5#
- 2.Qd4#
- 1...Bf2
- 2.Sdxe5#
- 2.Qd4#
- 2.Qf4#
- 1...Sg4
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sfe5#
- 2.Sg5#
- 2.Qd4#
- 2.Qf4#
- 1...Sc6
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sfe5#
- 2.Sg5#
- 2.Qf4#
- 1...Sd7
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sfe5#
- 2.Sg5#
- 2.Qd4#
- 2.Qf4#
- 1...Sf7
- 2.Sfe1#
- 2.Sxg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sfe5#
- 2.Sg5#
- 2.Qd4#
- 2.Qf4#
- 1...d4
- 2.Sfxe5#
- 2.Qxd4#
- 1...Sc4!
- threat
- 1.Sf2+?
- Keys
- 1.Qe8!
- 1...Sxd3
- 2.Bh4#
- 1...Sxf3
- 2.Bf6#
- 1...Sxg6
- 2.Bg5#
- 1...Bf2
- 2.Sdxe5#
- 1...Sc4
- 2.Bg5#
- 1...Sg4
- 2.Bg5#
- 1...Sc6
- 2.Bg5#
- 1...Sd7
- 2.Bg5#
- 1...Sf7
- 2.Bg5#
- 1...d4
- 2.Sfxe5#
- 1...h5
- 2.Bg5#
- 1...Sxd3
- 1.Qe8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- B(a);SBLOCK::R(B)+S(C),XS(g)
- P(f);SBLOCK::R(E)+S(D),XS(g)
- P(i);N_GUARD::B(K)
- Tries
- Try
- S(C);CHECK
- Vars
- S(g);P_SPINS(g)::S(C)
- Refutation
- K(e);S_FLIGHT,XS(C)
- Try
- S(D);CHECK
- Vars
- S(g);P_SPINS(g)::S(D)
- Refutation
- K(e);S_FLIGHT
- Try
- S(D);CHECK,XB(a)
- Vars
- K(e);S_FLIGHT::S(D)
- Refutation
- S(g);P_SPINS(g)
- Try
- S(D);CHECK
- Vars
- S(g);P_SPINS(g)::S(D)
- Refutation
- K(e);S_FLIGHT,XS(D)
- Try
- B(K);
- Threat
- R(B)+S(C),XS(g)
- Vars
- S(g);OGATEB,P_SPINS(g),XS(C)::QAR(F)
- P(f);SBLOCK::R(E)+S(D),XS(g)
- Refutation
- S(g);P_SPINS(g),XS(D)
- Try
- B(K);
- Vars
- S(g);OGATE,P_SPINS(g),XS(C)::B(K)
- B(a);SBLOCK::R(B)+S(C),XS(g)
- P(f);SBLOCK::R(E)+S(D),XS(g)
- P(i);N_GUARD::B(K)
- Refutation
- P(j);XB(K)
- Try
- P(G);
- Threat
- DUALS(3)
- Vars
- S(g);P_SPINS(g),XS(C)::QAB1(F)
- Refutation
- S(g);
- Try
- Actual
- Q(F);
- Vars
- S(g);OGATEB,P_SPINS(g),XS(C)::QAR(F)+B(K)
- S(g);OGATEB,P_SPINS(g),XS(D)::QAR(F)+B(K)
- S(g);XP(J)::QAR(F)+B(K),DCHECK
- B(a);SBLOCK::R(B)+S(C),XS(g)
- S(g);::QAR(F)+B(K),DCHECK
- P(f);SBLOCK::R(E)+S(D),XS(g)
- P(i);N_GUARD::B(K)
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).