MESON Chess Problem Database

Problem Display
PID: 99364 (R2R4/3B1N1Q/b1N3p1/2p5/r1k5/p4P2/P2PK3/4B3 w - - 0 1)

Racz, Imre

Sakkelet, 1998

R2R4/3B1N1Q/b1N3p1/2p5/r1k5/p4P2/P2PK3/4B3

#2

11 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bb5
      • 2.Be6#
    • 1...g5
      • 2.Qd3#
  • Tries
    • 1.Sce5+?
      • 1...Kb4+
        • 2.d3#
      • 1...Kd4+
        • 2.Bb5#
      • 1...Kd5+!
  • Keys
    • 1.Se7!
      • threat
        • 2.Qh4#
      • 1...Kb4+
        • 2.d3#
      • 1...Kd4+
        • 2.Bb5#
      • 1...Bb7
        • 2.Rxa4#
      • 1...g5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(e);SBLOCK::B(G)
    • P(f);OGATE::QAB1(I)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);CHECK,P-FLIGHT::B(A)+P(C)
        • K(c);CHECK,P-FLIGHT::R(K)+B(G)
      • Refutation
        • K(c);CHECK,S_FLIGHT
  • Actual
    • S(F);
    • Threat
      • QAR(I)
    • Vars
      • K(c);CHECK,P-FLIGHT::B(A)+P(C)
      • K(c);CHECK,P-FLIGHT::R(K)+B(G)
      • B(e);OGATE::R(J),XR(b)
      • P(f);OGATE::QAR2(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).