MESON Chess Problem Database

Problem Display
PID: 133125 (5qr1/p5nB/p3R3/p1p1BpP1/p1r1k1K1/5N1R/8/7Q w - f5 0 1)

Boyer, Jean-Pierre

diagrammes, 1983

5qr1/p5nB/p3R3/p1p1BpP1/p1r1k1K1/5N1R/8/7Q

#2

8 + 11

SOLUTION

  • SOUND
  • Tries
    • 1.Bxf5+?
      • 1...Ke3+
        • 2.Bd4#
      • 1...Kd5+
        • 2.Sd4#
      • 1...Sxf5
        • 2.Se1#
        • 2.Sg1#
        • 2.Sd2#
        • 2.Sh2#
        • 2.Sd4#
        • 2.Sh4#
      • 1...Qxf5+!
  • Keys
    • 1.gxf5 ep+!
      • 1...Ke3+
        • 2.Bd4#
      • 1...Kd5+
        • 2.Sd4#
      • 1...Sf5+
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = WHITE_IN_CHECK
  • Tries
    • Try
      • B(H);CHECK,XP(f)
      • Vars
        • K(c);CHECK,P-FLIGHT::R(G)+B(E),DCHECK
        • K(c);CHECK,S_FLIGHT::QAB(A)+S(B)
      • Refutation
        • Q(j);CHECK,XB(H)
  • Actual
    • P(F);CHECK,EP,XP(f)
    • Vars
      • K(c);CHECK,P-FLIGHT::R(G)+B(E),DCHECK
      • K(c);CHECK,S_FLIGHT::QAB(A)+S(B)
      • S(i);CHECK,P_SPINS(i)::QAB(A)+S(B),DCHECK
HTML5 logo

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).