MESON Chess Problem Database

Problem Display
PID: 195860 (BB6/4p3/b1ppN1KQ/1P5p/R3PNp1/4pk2/3P2R1/8 w - - 0 1)

Gavriliv, Evgeni M

StrateGems, 2018

BB6/4p3/b1ppN1KQ/1P5p/R3PNp1/4pk2/3P2R1/8

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...g3
      • 2.Qxh5#
    • 1...cxb5
      • 2.Sd4#
    • 1...d5
      • 2.Sg5#
  • Tries
    • 1.Kf5?
      • threat
        • 2.Sd4#
        • 2.Sg5#
      • 1...exd2
        • 2.Ra3#
      • 1...c5
        • 2.Sg5#
      • 1...Bc8!
    • 1.Ra3?
      • threat
        • 2.Rxe3#
      • 1...Kxe4
        • 2.Rxe3#
      • 1...g3!
    • 1.e5?
      • threat
        • 2.Sg5#
      • 1...g3
        • 2.Qxh5#
      • 1...exd2!
  • Keys
    • 1.Bxc6!
      • threat
        • 2.Sd4#
      • 1...exd2
        • 2.Ra3#
      • 1...g3
        • 2.Qxh5#
      • 1...d5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(c);OGATEB::QAB(I),XP(d)
    • P(f);XP(F)::S(G)
    • P(g);::S(G)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(a);OGATEB,XP(A)::R(C)
        • P(f);::S(G)
      • Refutation
        • B(e);P_PINS(G)
    • Try
      • R(C);P_PINP(a)
      • Threat
        • R1(C),XP(a)
      • Vars
        • K(b);N_SPINP(a),P_SPINP(f),S_FLIGHT,XP(D)::R1(C),XP(a)
      • Refutation
        • P(c);
    • Try
      • P(D);P_PINP(f)
      • Threat
        • S(G)
      • Vars
        • P(c);OGATEB::QAB(I),XP(d)
      • Refutation
        • P(a);XP(A)
  • Actual
    • B(J);XP(f)
    • Threat
      • S(G)
    • Vars
      • P(a);OGATEB,XP(A)::R(C)
      • P(c);OGATEB::QAB(I),XP(d)
      • P(g);::S(G)
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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).