MESON Chess Problem Database
Problem Display
PID: 10400 (4B3/3N4/Q2BnP2/R1pk2NR/3Pn3/2P5/4P3/4K3 w - - 0 1)
Mansfield, Comins
Dunaujvarosi Hirlap TT, 1964-1966
#2
12 + 4
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Sxd6
- 2.Sb6#
- 1...Sxf6
- 2.Sxf6#
- 1...Sxd4
- 2.c4#
- 1...Sxg5
- 2.Bf7#
- 1...Sxd6
- Tries
- 1.Sf3+?
- 1...S6g5
- 2.Bf7#
- 1...S4g5!
- 1...S6g5
- 1.Sh3+?
- 1...S6g5
- 2.Sf4#
- 2.Bf7#
- 1...S4g5!
- 1...S6g5
- 1.Sxe4+?
- 1...Kxe4
- 2.Qd3#
- 1...Sg5!
- 1...Kxe4
- 1.Sxe6+?
- 1...Kxe6
- 2.Re5#
- 2.d5#
- 1...Sg5!
- 1...Kxe6
- 1.Sh7+?
- 1...S6g5
- 2.Bf7#
- 1...S4g5!
- 1...S6g5
- 1.Bxc5?
- threat
- 2.Sb6#
- 2.Qxe6#
- 2.c4#
- 1...Sxc3
- 2.Sb6#
- 2.Qxe6#
- 1...S4xc5
- 2.Qxe6#
- 2.e4#
- 1...Sxd4
- 2.c4#
- 1...S6xc5
- 2.Bf7#
- 2.Qe6#
- 1...S6xg5
- 2.Bf7#
- 2.c4#
- 1...Sd2
- 2.Sb6#
- 2.Qxe6#
- 1...Sd6
- 2.Sb6#
- 1...Sf4
- 2.Sb6#
- 2.c4#
- 1...Sc7
- 2.Sb6#
- 2.c4#
- 1...Sg7
- 2.Sb6#
- 2.c4#
- 1...Sd8
- 2.Sb6#
- 2.c4#
- 1...Sf8
- 2.Sb6#
- 2.c4#
- 1...S4xg5!
- threat
- 1.Be5?
- threat
- 2.Sb6#
- 2.Qxe6#
- 2.c4#
- 1...Sxc3
- 2.Sb6#
- 2.Qxe6#
- 1...Sxd4
- 2.c4#
- 1...S6xg5
- 2.c4#
- 1...Sd2
- 2.Sb6#
- 2.Qxe6#
- 1...Sd6
- 2.Sb6#
- 1...Sf4
- 2.Sb6#
- 2.c4#
- 1...Sc7
- 2.Sb6#
- 2.c4#
- 1...Sg7
- 2.Sb6#
- 2.c4#
- 1...Sd8
- 2.Sb6#
- 2.c4#
- 1...Sf8
- 2.Sb6#
- 2.c4#
- 1...S4xg5!
- threat
- 1.Qb7+?
- 1...Kxd6
- 2.Sxe4#
- 2.Sf7#
- 2.Ra6#
- 1...Kc4!
- 1...Kxd6
- 1.Sf3+?
- Keys
- 1.Sxc5!
- 1...Sxc3
- 2.Sgxe6#
- 1...S4xc5
- 2.e4#
- 1...S4xg5
- 2.e4#
- 1...Sxd6
- 2.Bc6#
- 1...Sxf6
- 2.Scxe6#
- 1...Sxd4
- 2.c4#
- 1...S6xc5
- 2.Bf7#
- 1...S6xg5
- 2.Bf7#
- 1...Sd2
- 2.Scxe6#
- 2.Sgxe6#
- 1...Sf2
- 2.Scxe6#
- 2.Sgxe6#
- 1...Sg3
- 2.Scxe6#
- 1...Sf4
- 2.Scxe4#
- 1...Sc7
- 2.Sgxe4#
- 1...Sg7
- 2.Scxe4#
- 1...Sd8
- 2.Scxe4#
- 2.Sgxe4#
- 1...Sf8
- 2.Scxe4#
- 2.Sgxe4#
- 1...Sxc3
- 1.Sxc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- S(a);SBLOCK,XB(I)::S(K)
- S(a);XP(J)::S(K),XS(a)
- S(d);SBLOCK,XP(D)::P(C)
- S(d);OGATEB,P_SPINS(d),XS(F)::B(L)
- Tries
- Try
- S(F);CHECK
- Vars
- S(d);P_SPINS(d),S_CUTS(a)::B(L)
- Refutation
- S(a);P_SPINS(a)
- Try
- S(F);CHECK
- Refutation
- S(a);P_SPINS(a)
- Try
- S(F);CHECK,XS(a)
- Vars
- K(c);N_SPINP(b),S_FLIGHT,XS(F)::QAB1(H)
- Refutation
- S(d);P_SPINS(d)
- Try
- S(F);CHECK,XS(d)
- Refutation
- S(a);P_SPINS(a)
- Try
- S(F);CHECK
- Vars
- S(d);P_SPINS(d),S_CUTS(a)::B(L)
- Refutation
- S(a);P_SPINS(a)
- Try
- B(I);XP(b)
- Threat
- DUALS(3)
- Vars
- S(d);XP(D)::P(C)
- S(a);::S(K)
- Refutation
- S(a);P_SPINS(a),XS(F)
- Try
- B(I);
- Threat
- DUALS(3)
- Vars
- S(d);XP(D)::P(C)
- S(d);XS(F)::P(C)
- S(a);::S(K)
- Refutation
- S(a);XS(F)
- Try
- Q(H);CHECK
- Refutation
- K(c);N_SPINP(b),S_FLIGHT
- Try
- Actual
- S(K);XP(b)
- Vars
- S(a);N_GUARD,XP(C)::R(G)+S(F),XS(d)
- S(a);OGATE,P_SPINS(a),XS(K)::P(B)
- S(a);OGATE,P_SPINS(a),XS(F)::P(B)
- S(a);SBLOCK,XB(I)::B(L)
- S(a);N_GUARD,XP(J)::R(E)+S(K),XS(d)
- S(d);SBLOCK,XP(D)::P(C)
- S(d);OGATEB,P_SPINS(d),XS(K)::B(L)
- S(d);OGATEB,P_SPINS(d),XS(F)::B(L)
- S(a);N_GUARD::R(E)+S(K),XS(d)
- S(d);N_GUARD::R(E)+S(K),XS(a)
- S(d);N_GUARD::R(G)+S(F),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).