MESON Chess Problem Database

Problem Display
PID: 180182 (4K3/5p2/5p2/n1p5/2p5/b1B2Bp1/N3p2Q/N2k1b1n w - - 0 1)

Zabirokhin, Piotr

Sachmatija, 2015

4K3/5p2/5p2/n1p5/2p5/b1B2Bp1/N3p2Q/N2k1b1n

#2

6 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.Bxe2#
      • 2.Qxe2#
    • 1...g2
      • 2.Qd6#
  • Tries
    • 1.Qh3?
      • threat
        • 2.Qxf1#
        • 2.Qd7#
      • 1...Bg2
        • 2.Qd7#
      • 1...Bc1
        • 2.Qxf1#
      • 1...Sf2
        • 2.Qxf1#
      • 1...Sb3
        • 2.Qxf1#
      • 1...Sc6
        • 2.Qxf1#
      • 1...Sb7
        • 2.Qxf1#
      • 1...g2
        • 2.Qd7#
      • 1...f5
        • 2.Qxf1#
      • 1...Bxh3!
    • 1.Qh6?
      • threat
        • 2.Qd2#
      • 1...Bc1
        • 2.Qxc1#
      • 1...Sb3!
  • Keys
    • 1.Be4!
      • threat
        • 2.Bc2#
      • 1...e1Q
        • 2.Qc2#
      • 1...e1S
        • 2.Qd2#
      • 1...e1R
        • 2.Qc2#
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(f);OGATE::QAR(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);::QAR(C)
        • B(e);::QAR2(C),XB(b)
        • S(c);::QAR2(C),XB(b)
        • S(h);::QAR2(C),XB(b)
        • P(f);::QAR(C)
        • P(j);::QAR2(C),XB(b)
      • Refutation
        • B(b);XQ(C)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • B(e);N_GUARD::QAR1(C),XB(e)
      • Refutation
        • S(h);
  • Actual
    • B(E);N_PINP(d)
    • Threat
      • B(E)
    • Vars
      • P(d);OGATE,P_PINB(E)::QAB1(C)
      • P(d);OGATE::QAR1(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).