MESON Chess Problem Database
Problem Display
PID: 10257 (4b3/4p1Q1/1B6/K3P1pN/4kpqR/2n1PNb1/3R4/7B w - - 0 1)
Mansfield, Comins
1st HM., El Ajedrez Espanol, 1963
#2
10 + 8
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Kf5
- 2.Sd4#
- 1...Qxf3
- 2.Sxg3#
- 1...Qf5
- 2.Se1#
- 2.Sg1#
- 2.Sh2#
- 2.Sxg5#
- 2.Sxg3#
- 1...Qe6
- 2.Sxg3#
- 1...Qd7
- 2.Sxg3#
- 1...Qc8
- 2.Sxg3#
- 1...fxe3
- 2.Sd4#
- 1...Kf5
- Tries
- 1.Se1+?
- 1...Qf3
- 2.Sxg3#
- 1...f3
- 2.Sxg3#
- 1...Kf5!
- 1...Qf3
- 1.Sg1+?
- 1...Qf3
- 2.Sxg3#
- 1...f3
- 2.Sxg3#
- 1...Kf5!
- 1...Qf3
- 1.Sh2+?
- 1...Qf3
- 2.Sxg3#
- 1...f3
- 2.Sxg3#
- 1...Kf5!
- 1...Qf3
- 1.Rxg4?
- threat
- 2.Sh4#
- 2.Sxg3#
- 1...Bxh5
- 2.Sh4#
- 1...Be1
- 2.Sh4#
- 1...Bf2
- 2.Sh4#
- 1...Bh2
- 2.Sh4#
- 1...Bh4
- 2.Sxh4#
- 1...Se2
- 2.Sh4#
- 1...Kf5!
- threat
- 1.Qf6?
- threat
- 2.Sxg5#
- 1...Qxf3
- 2.Sxg3#
- 1...gxh4
- 2.Sg5#
- 1...exf6!
- threat
- 1.Qg6+?
- 1...Qf5
- 2.Sxg3#
- 1...Bxg6!
- 1...Qf5
- 1.Qh7+?
- 1...Qf5
- 2.Sxg3#
- 1...Bg6!
- 1...Qf5
- 1.Se1+?
- Keys
- 1.e6!
- threat
- 2.Qe5#
- 1...Qf5+
- 2.Se5#
- 1...Kf5
- 2.Sd4#
- 1...Qxf3
- 2.Sxg3#
- 1...Qxe6
- 2.Sxg3#
- 1...fxe3
- 2.Sd4#
- threat
- 1.e6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- K(c);S_FLIGHT::S(D)
- Q(e);N_GUARD,P_SPINP(d),P_SPINQ(e),XS(D)::S(H),XB(b)
- Q(e);N_GUARD,P_SPINP(d)::S(H),XB(b)
- P(d);N_GUARD,P_SPINQ(e),SBLOCK,XP(C)::B(A)+S(D)
- Tries
- Try
- S(D);CHECK
- Vars
- Q(e);P_SPINP(d),P_SPINQ(e)::S(H),XB(b)
- P(d);P_SPINP(d),P_SPINQ(e)::S(H),XB(b)
- Refutation
- K(c);S_FLIGHT
- Try
- S(D);CHECK
- Vars
- Q(e);P_SPINP(d),P_SPINQ(e)::S(H),XB(b)
- P(d);P_SPINP(d),P_SPINQ(e)::S(H),XB(b)
- Refutation
- K(c);S_FLIGHT
- Try
- S(D);CHECK
- Vars
- Q(e);P_SPINP(d),P_SPINQ(e)::S(H),XB(b)
- P(d);P_SPINP(d),P_SPINQ(e)::S(H),XB(b)
- Refutation
- K(c);S_FLIGHT
- Try
- R(E);P_PINP(d),XQ(e)
- Threat
- DUALS(2)
- Vars
- B(h);XS(H)::B(A)+S(D)
- B(b);::B(A)+S(D)
- B(b);::B(A)+S(D),XB(b)
- S(a);::B(A)+S(D)
- Refutation
- K(c);N_SPINP(d),S_FLIGHT
- Try
- Q(J);
- Threat
- B(A)+S(D),DCHECK,XP(f)
- Vars
- Q(e);N_GUARD,P_SPINP(d),P_SPINQ(e),XS(D)::S(H),XB(b)
- P(f);XR(E)::B(A)+S(D),DCHECK
- Refutation
- P(g);XQ(J)
- Try
- Q(J);CHECK
- Vars
- Q(e);P_PINP(G),P_SPINP(d),P_SPINQ(e)::S(H),XB(b)
- Refutation
- B(h);XQ(J)
- Try
- Q(J);CHECK
- Vars
- Q(e);P_PINP(G),P_SPINP(d),P_SPINQ(e)::S(H),XB(b)
- Refutation
- B(h);P_SPINB(h)
- Try
- Actual
- P(G);
- Threat
- QAR1(J)
- Vars
- Q(e);CHECK,N_GUARD,P_SPINP(d),SBLOCK::B(A)+S(D)
- K(c);S_FLIGHT::S(D)
- Q(e);N_GUARD,P_SPINP(d),P_SPINQ(e),XS(D)::S(H),XB(b)
- Q(e);N_GUARD,P_SPINP(d),XP(G)::S(H),XB(b)
- P(d);N_GUARD,P_SPINQ(e),SBLOCK,XP(C)::B(A)+S(D)
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).