MESON Chess Problem Database

Problem Display
PID: 203700 (8/1K6/1bN1B1pp/3np3/4k2P/4q2R/1Pp3P1/2B1RQN1 w - - 0 1)

Janevski, Zivko

The Problemist Supplement, 2019

8/1K6/1bN1B1pp/3np3/4k2P/4q2R/1Pp3P1/2B1RQN1

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe1
      • 2.Qd3#
      • 2.Qf3#
    • 1...Qe2
      • 2.Qf3#
    • 1...Ba5
      • 2.Qc4#
    • 1...Bc7
      • 2.Qc4#
    • 1...Bd8
      • 2.Qc4#
    • 1...g5
      • 2.Bf5#
      • 2.Qf5#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Sd2#
      • 1...Kf4
        • 2.Sg5#
      • 1...Ba5
        • 2.Qc4#
      • 1...Qxe1!
    • 1.Rhxe3+?
      • 1...Bxe3
        • 2.Qc4#
      • 1...Sxe3!
    • 1.Qd3+?
      • 1...Kf4
        • 2.Se2#
        • 2.Rf1#
        • 2.Rf3#
        • 2.g3#
      • 1...Kxd3!
  • Keys
    • 1.Se2!
      • threat
        • 2.Sg3#
      • 1...Kd3
        • 2.Sc3#
      • 1...Qxe2
        • 2.Qf3#
      • 1...Qg3
        • 2.Sc3#
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(b);::QAB1(C)
    • B(f);N_GUARD::QAR2(C)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • K(c);P-FLIGHT::QAR(C)+S(D)
        • B(f);N_GUARD::QAR2(C)
      • Refutation
        • Q(b);N_SPINQ(b),XR(B)
    • Try
      • R(G);CHECK,XQ(b)
      • Vars
        • B(f);P_SPINB(f),XR(G)::QAR2(C)
      • Refutation
        • S(d);P_SPINS(d),XR(G)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);S_FLIGHT,XQ(C)
  • Actual
    • S(D);N_PINQ(b)
    • Threat
      • S(D)
    • Vars
      • K(c);P_SPINQ(b),S_FLIGHT::QAB(C)+S(D)
      • Q(b);N_GUARD,P_SPINQ(b),XS(D)::QAB1(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).