MESON Chess Problem Database

Problem Display
PID: 236012 (8/1p3NK1/3pkP2/bBp5/r1r1q3/2PQ1p1P/5RN1/4R3 w - - 0 1)

Tkachenko, Sergiy Ivanovich

Sachova skladba, 2020

8/1p3NK1/3pkP2/bBp5/r1r1q3/2PQ1p1P/5RN1/4R3

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Bd7#
    • 1...Qe5
      • 2.Sg5#
    • 1...fxg2
      • 2.Qxd6#
  • Tries
    • 1.Rxe4+?
      • 1...Kf5
        • 2.Se3#
        • 2.Sh4#
        • 2.Bd7#
        • 2.Rxf3#
        • 2.Re5#
        • 2.Qxf3#
        • 2.Qd5#
      • 1...Rxe4!
    • 1.Rd2?
      • threat
        • 2.Qd5#
      • 1...Kf5
        • 2.Bd7#
      • 1...Qe5
        • 2.Sg5#
      • 1...d5
        • 2.Qxd5#
      • 1...Rd4!
  • Keys
    • 1.Qxf3!
      • threat
        • 2.Qf5#
      • 1...Kd5
        • 2.Sf4#
      • 1...Qe5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(h);P_SPINP(a),S_FLIGHT::B(G)
    • Q(d);P_PINP(H)::S(I)
    • P(a);XS(C)::QAR1(E),XP(g)
  • Tries
    • Try
      • R(A);CHECK,XQ(d)
      • Refutation
        • R(c);XR(A)
    • Try
      • R(B);
      • Threat
        • QAB1(E)
      • Vars
        • K(h);S_FLIGHT::B(G)
        • Q(d);P_PINP(H)::S(I)
        • P(g);::QAB1(E),XP(g)
      • Refutation
        • R(c);
  • Actual
    • Q(E);XP(a)
    • Threat
      • QAB1(E)
    • Vars
      • K(h);S_FLIGHT::S(C)
      • Q(d);P_PINP(H)::S(I)
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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).