MESON Chess Problem Database

Problem Display
PID: 263171 (1R3Rbr/Q2p1pkr/p1P4p/1p2P2p/2pK3N/2B5/8/8 w - - 0 1)

Hadzi-Vaskov, Georgi

SuperProblem, 2021

1R3Rbr/Q2p1pkr/p1P4p/1p2P2p/2pK3N/2B5/8/8

#2

8 + 11

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.exf5 ep#
    • 1...f6
      • 2.exf6#
  • Tries
    • 1.Rxf7+?
      • 1...Kxf7
        • 2.Qxd7#
      • 1...Bxf7!
  • Keys
    • 1.Ke4!
      • threat
        • 2.Qg1#
      • 1...d5+
        • 2.exd5 ep#
      • 1...f5+
        • 2.exf5 ep#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(g);OGATE,P_SPINP(f)::P(D),XP(g),EP
    • P(g);OGATE,P_SPINP(f)::P(D),XP(g)
  • Tries
    • Try
      • R(H);CHECK,XP(g)
      • Vars
        • K(h);P-FLIGHT,P_SPINP(f),S_CUTB(j),XR(H)::QAR2(F),XP(f)
      • Refutation
        • B(j);XR(H)
  • Actual
    • K(B);P-FLIGHT
    • Threat
      • QAR(F)
    • Vars
      • P(f);CHECK,OGATE,P_SPINP(g)::B(A)+P(D),XP(f),EP
      • P(g);CHECK,OGATE,P_SPINP(f)::P(D),XP(g),EP
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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).