MESON Chess Problem Database

Problem Display
PID: 159481 (8/1pQ5/5b2/RKN1rP2/P2k2NR/2p5/2B1pq2/8 w - - 0 1)

Amirov, Talip Khasanovich

Themes-64, 1964

8/1pQ5/5b2/RKN1rP2/P2k2NR/2p5/2B1pq2/8

#2

9 + 7

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Sxf6#
      • 2.Qd7#
    • 1...Re3
      • 2.Qd6#
      • 2.Qd7#
    • 1...Re4
      • 2.Qd6#
      • 2.Qd7#
    • 1...Rxc5+
      • 2.Qxc5#
    • 1...Re7
      • 2.Qd6#
    • 1...Re8
      • 2.Qd6#
      • 2.Qd7#
    • 1...Bxh4
      • 2.Qxe5#
    • 1...Bg5
      • 2.Qxe5#
    • 1...Be7
      • 2.Qxe5#
    • 1...Bd8
      • 2.Qxe5#
  • Tries
    • 1.Kb4?
      • threat
        • 2.Sb3#
      • 1...Kd5
        • 2.Sxf6#
        • 2.Qd7#
      • 1...Rxc5
        • 2.Qxc5#
      • 1...Be7
        • 2.Qxe5#
      • 1...b5!
  • Keys
    • 1.Kb6!
      • threat
        • 2.Sb3#
      • 1...Re6+
        • 2.Sxe6#
      • 1...Kc4
        • 2.Se3#
      • 1...Kd5
        • 2.Sxf6#
      • 1...Rxc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(e);CHECK,OGATE,XS(G)::QAB1(I),XR(e)
    • R(e);N_GUARD,N_PINS(G)::QAR2(I)
    • B(f);N_GUARD,XR(D)::QAB1(I),XR(e)
    • B(f);N_GUARD::QAB1(I),XR(e)
  • Tries
    • Try
      • K(F);N_SPINS(G),P-FLIGHT
      • Threat
        • S(G)
      • Vars
        • R(e);OGATE,XS(G)::QAB1(I),XR(e)
        • B(f);N_GUARD,P_PINS(G)::QAB1(I),XR(e)
      • Refutation
        • P(g);
  • Actual
    • K(F);N_SPINS(G),P-FLIGHT
    • Threat
      • S(G)
    • Vars
      • R(e);CHECK,N_GUARD::S(G),XR(e)
      • K(d);P-FLIGHT,P_PINS(G)::R(D)+S(C),DCHECK
      • K(d);P-FLIGHT,P_PINS(G)::S(C),XB(f)
      • R(e);OGATE,XS(G)::QAB1(I),XR(e)
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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).