MESON Chess Problem Database

Problem Display
PID: 194683 (Rbbk2K1/N2p3p/2PP2pB/4p2B/8/8/2Q5/8 w - - 0 1)

Gatti, Daniele

Best Problems, 2019

Rbbk2K1/N2p3p/2PP2pB/4p2B/8/8/2Q5/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bc7
      • 2.Rxc8#
    • 1...g5
      • 2.Bxg5#
  • Tries
    • 1.Kf7?
      • threat
        • 2.Bg5#
      • 1...Bxd6
        • 2.Rxc8#
      • 1...g5
        • 2.Bxg5#
      • 1...dxc6!
    • 1.Rxb8?
      • threat
        • 2.Rxc8#
      • 1...Ke8
        • 2.Rxc8#
      • 1...dxc6!
    • 1.c7+?
      • 1...Bxc7
        • 2.Rxc8#
      • 1...Ke8!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qf8#
      • 1...Ke8
        • 2.Qf8#
      • 1...Bxd6
        • 2.Qxd7#
      • 1...gxf5
        • 2.Bg5#
      • 1...dxc6
        • 2.Qxc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(e);OGATE,P_SPINB(f)::R1(G),XB(f)
    • P(b);::B(E),XP(b)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Threat
        • B(E)
      • Vars
        • B(e);OGATE,P_SPINB(f),XP(D)::R1(G),XB(f)
        • P(b);::B(E),XP(b)
      • Refutation
        • P(c);XP(C)
    • Try
      • R(G);P_PINB(f),XB(e)
      • Threat
        • R1(G),XB(f)
      • Vars
        • K(g);P-FLIGHT,P_SPINP(b)::R(G),XB(f)
      • Refutation
        • P(c);XP(C)
    • Try
      • P(C);CHECK
      • Vars
        • B(e);OGATE,P_SPINB(f),XP(C)::R1(G),XB(f)
      • Refutation
        • K(g);P-FLIGHT,P_SPINP(b)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(g);P-FLIGHT,P_SPINP(b)::QAR1(A)
      • B(e);P_SPINB(f),XP(D)::QAR1(A),XP(c)
      • P(b);XQ(A)::B(E)
      • P(c);OGATE,XP(C)::QAR1(A),XB(f)
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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).