MESON Chess Problem Database

Problem Display
PID: 276199 (2Q3K1/8/2pk4/8/3N1P2/8/3B4/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Shakhnazaryan, Albert Serapionovic

Pat a Mat, 1999

2Q3K1/8/2pk4/8/3N1P2/8/3B4/8

#2

5 + 2

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Qd8#
  • Tries
    • 1.Bb4+?
      • 1...c5
        • 2.Qd8#
      • 1...Kd5!
  • Keys
    • 1.Bc3!
      • 1...Kc5
        • 2.Qxc6#
      • 1...Kd5
        • 2.Qxc6#
      • 1...Ke7
        • 2.Sf5#
      • 1...c5
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(a);SBLOCK::QAR2(D)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • P(a);P_SPINP(a)::QAR2(D)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAR1(D),XP(a)
      • K(b);N_GUARD,P-FLIGHT::QAB1(D),XP(a)
      • K(b);N_GUARD,S_FLIGHT::S(B)
      • P(a);SBLOCK::QAR2(D)
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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).