MESON Chess Problem Database

Problem Display
PID: 78168 (2B3Q1/4p3/5p2/2p1P2p/2N1k1bP/1P2Pp1p/2P2P1K/8 w - - 0 1)

Pradignat, Emile Leonard

Source?, 0000

2B3Q1/4p3/5p2/2p1P2p/2N1k1bP/1P2Pp1p/2P2P1K/8

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Bb7#
    • 1...fxe5
      • 2.Sd2#
    • 1...f5
      • 2.Bb7#
  • Tries
    • 1.Bf5+?
      • 1...Bxf5
        • 2.Qa8#
      • 1...Kxf5!
    • 1.Qh7+?
      • 1...Bf5
        • 2.Bb7#
      • 1...f5
        • 2.Bb7#
      • 1...Kd5!
    • 1.Qxg4+?
      • 1...Kd5
        • 2.Bb7#
        • 2.Qxf3#
      • 1...hxg4!
    • 1.Qg6+?
      • 1...Bf5
        • 2.Bb7#
      • 1...f5
        • 2.Bb7#
        • 2.Qc6#
      • 1...Kd5!
  • Keys
    • 1.e6!
      • 1...Kd5
        • 2.Bb7#
      • 1...Kf5
        • 2.Qh7#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Bf5
        • 2.Bb7#
      • 1...f5
        • 2.Bb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(d);SBLOCK::B(I)
    • P(g);SBLOCK,XP(H)::S(F)
    • P(g);SBLOCK::B(I)
  • Tries
    • Try
      • B(I);CHECK
      • Vars
        • B(d);SBLOCK,XB(I)::QAB(J)
      • Refutation
        • K(c);S_FLIGHT,XB(I)
    • Try
      • Q(J);CHECK
      • Vars
        • B(d);P_SPINB(d)::B(I)
        • P(g);P_SPINP(g)::B(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);CHECK,XB(d)
      • Refutation
        • P(f);XQ(J)
    • Try
      • Q(J);CHECK
      • Vars
        • B(d);P_SPINB(d)::B(I)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • P(H);
    • Vars
      • K(c);S_FLIGHT::B(I)
      • K(c);S_FLIGHT::QAB(J)
      • B(d);OGATE,XP(H)::QAR2(J),XB(d)
      • B(d);SBLOCK::B(I)
      • P(g);SBLOCK::B(I)
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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).