MESON Chess Problem Database

Problem Display
PID: 224436 (2B5/2p5/Kp2P3/3kP3/1P1n4/2R2P2/6Q1/B7 w - - 0 1)

Anonymous

Wilkes-Barre Record, 1888

(First published on Thu Nov 15 1888)

2B5/2p5/Kp2P3/3kP3/1P1n4/2R2P2/6Q1/B7

#2

9 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Rc5#
  • Tries
    • 1.Rxc7?
      • 1...Sxf3
        • 2.Qxf3#
      • 1...Sxe6
        • 2.Bb7#
        • 2.Qa2#
        • 2.f4#
      • 1...Sc2
        • 2.f4#
      • 1...Se2
        • 2.f4#
      • 1...Sb3
        • 2.f4#
      • 1...Sb5
        • 2.Qa2#
        • 2.f4#
      • 1...Sf5
        • 2.Qa2#
        • 2.f4#
      • 1...Sc6
        • 2.Qa2#
      • 1...b5
        • 2.Rc5#
      • 1...Kxe5!
  • Keys
    • 1.Rc6!
      • 1...Kxe5
        • 2.Qg5#
      • 1...Kxc6
        • 2.Bb7#
      • 1...Sxf3
        • 2.Qxf3#
      • 1...Sxc6
        • 2.Qa2#
      • 1...Sxe6
        • 2.f4#
      • 1...Sc2
        • 2.f4#
      • 1...Se2
        • 2.f4#
      • 1...Sb3
        • 2.f4#
      • 1...Sb5
        • 2.f4#
      • 1...Sf5
        • 2.f4#
      • 1...b5
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::R1(C)
  • Tries
    • Try
      • R(C);XP(d)
      • Vars
        • S(a);OGATE,P_SPINS(a),XP(D)::QAB(B),XS(a)
        • S(a);N_GUARD::QAB(B)+P(D)
        • S(a);N_GUARD::QAB(B)
        • P(c);N_GUARD::R1(C)
      • Refutation
        • K(b);P-FLIGHT,P_SPINS(a),XP(F)
  • Actual
    • R(C);
    • Vars
      • K(b);OGATEB,P-FLIGHT,P_SPINS(a),XP(F)::QAR2(B)
      • K(b);OGATEB,S_FLIGHT,XR(C)::B(I)
      • S(a);OGATE,P_SPINS(a),XP(D)::QAB(B),XS(a)
      • S(a);N_GUARD,SBLOCK,XR(C)::QAB(B)
      • S(a);N_GUARD,XP(H)::QAB(B)+P(D)
      • S(a);N_GUARD::QAB(B)+P(D)
      • P(c);N_GUARD::R1(C)
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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).