MESON Chess Problem Database

Problem Display
PID: 101765 (2R5/1r2p3/b3B1p1/6pq/1pN1k1Nn/4P3/4K3/6R1 w - - 0 1)

Bouchez, Laurent

diagrammes, 1989

2R5/1r2p3/b3B1p1/6pq/1pN1k1Nn/4P3/4K3/6R1

#2

7 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg4+
      • 2.Rxg4#
    • 1...Qh6
      • 2.Sf2#
    • 1...Qh7
      • 2.Sf2#
    • 1...Qh8
      • 2.Sf2#
    • 1...Rb5
      • 2.Sd2#
    • 1...Bxc4+
      • 2.Rxc4#
    • 1...Sf3
      • 2.Sf2#
  • Tries
    • 1.Bd5+?
      • 1...Kf5
        • 2.Rf8#
      • 1...Kxd5!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Re5#
      • 1...Qxg4+
        • 2.Rxg4#
      • 1...Bxc4+
        • 2.Rxc4#
      • 1...Qh8
        • 2.Sf2#
      • 1...Rb5
        • 2.Sd2#
      • 1...Sf3
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • Q(e);CHECK,OGATE,XS(E)::R(A),XQ(e)
    • Q(e);::S(E)
    • R(h);N_PINS(D),P_PINS(E)::S(D)
    • B(f);CHECK,OGATE,P_PINS(E),XS(D)::R(G),XB(f)
    • S(c);::S(E)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(b);S_FLIGHT::R(G)
      • Refutation
        • K(b);S_FLIGHT,XB(F)
  • Actual
    • R(G);
    • Threat
      • R1(G)
    • Vars
      • Q(e);CHECK,OGATE,XS(E)::R(A),XQ(e)
      • B(f);CHECK,OGATE,P_PINS(E),XS(D)::R(G),XB(f)
      • Q(e);::S(E)
      • R(h);N_PINS(D),P_PINS(E)::S(D)
      • S(c);::S(E)
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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).