MESON Chess Problem Database
Problem Display
PID: 21719 (4R2b/pQ5b/1p6/4p3/4pNpr/4kPB1/3R2np/2K4B w - - 0 1)
Sheppard, Charles William
La Strategie, 1920
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Kxf3
- 2.Rd3#
- 1...Bg8
- 2.Qxe4#
- 1...Se1
- 2.Sd5#
- 1...Sxf4
- 2.Bf2#
- 1...gxf3
- 2.Sd5#
- 1...Kxf3
- Tries
- 1.Rxe5?
- threat
- 2.Rd3#
- 1...Kxf3
- 2.Rd3#
- 1...Sxf4
- 2.Bf2#
- 1...Se1
- 2.Sd5#
- 1...Bxe5!
- threat
- 1.Qxb6+?
- 1...Kxf3
- 2.Qf2#
- 1...axb6!
- 1...Kxf3
- 1.Rxe5?
- Keys
- 1.Qd5!
- threat
- 2.Qb3#
- 1...Kxf3
- 2.Rd3#
- 1...Sxf4
- 2.Bf2#
- 1...exf3
- 2.Qd4#
- 1...exf4
- 2.Qd3#
- 1...Bg8
- 2.Qxe4#
- 1...Se1
- 2.Re2#
- threat
- 1.Qd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- K(c);P-FLIGHT,P_SPINP(d),P_SPINS(a),XP(D)::R(C)
- B(j);N_GUARD::QAR1(G),XP(d)
- S(a);::S(F)
- S(a);SBLOCK,XS(F)::B(E)
- P(e);SBLOCK,XP(D)::S(F)
- Tries
- Try
- R(H);P_PINP(d),XP(g)
- Threat
- R1(C)
- Vars
- K(c);P-FLIGHT,P_SPINS(a),XP(D)::R(C)
- S(a);SBLOCK,XS(F)::B(E)
- S(a);::S(F)
- Refutation
- B(k);N_SPINP(d),XR(H)
- Try
- Q(G);CHECK,XP(h)
- Vars
- K(c);OGATE,P-FLIGHT,P_SPINS(a),XP(D)::QAR1(G)
- Refutation
- P(i);XQ(G)
- Try
- Actual
- Q(G);
- Threat
- QAR(G)
- Vars
- K(c);P-FLIGHT,P_SPINP(d),P_SPINS(a),XP(D)::R(C)
- S(a);SBLOCK,XS(F)::B(E)
- P(d);P_SPINP(g),SBLOCK,XP(D)::QAB1(G)
- P(g);P_SPINP(d),XS(F)::QAR1(G)
- B(j);N_GUARD::QAR1(G),XP(d)
- S(a);::R1(C)
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).