MESON Chess Problem Database

Problem Display
PID: 95245 (Q7/1KP1p3/4p3/3kppP1/1b4nR/p2NPN1p/bP4B1/3R2B1 w - - 0 1)

Mikulcak, Josef

Match: Germany - Italy, 1938

Q7/1KP1p3/4p3/3kppP1/1b4nR/p2NPN1p/bP4B1/3R2B1

#2

12 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qd8#
  • Tries
    • 1.Kb6+?
      • 1...Kd6
        • 2.Qc6#
        • 2.Qd8#
      • 1...Kc4!
    • 1.Sfxe5+?
      • 1...Kd6
        • 2.Qa6#
        • 2.Qd8#
        • 2.c8S#
      • 1...hxg2!
    • 1.Qa6?
      • threat
        • 2.Qc6#
      • 1...Ke4
        • 2.Sd2#
      • 1...Bc5!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qc6#
      • 1...Kc4
        • 2.Sfxe5#
      • 1...Ke4
        • 2.Sc5#
      • 1...Kd6
        • 2.Qc6#
      • 1...Bc5
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(f);P-FLIGHT::QAR2(L)
  • Tries
    • Try
      • K(J);CHECK,P-FLIGHT
      • Refutation
        • K(f);P_SPINS(e),S_FLIGHT
    • Try
      • S(G);CHECK,XP(g)
      • Refutation
        • P(c);XB(D)
    • Try
      • Q(L);
      • Threat
        • QAB1(L)
      • Vars
        • K(f);P_SPINS(e),S_FLIGHT::B(D)+S(G),DCHECK
      • Refutation
        • B(d);
  • Actual
    • Q(L);
    • Threat
      • QAB1(L)
    • Vars
      • K(f);P_SPINB(d),P_SPINS(e),S_FLIGHT::S(G),XP(g)
      • K(f);P_SPINB(d),P_SPINS(e),S_FLIGHT::S(E)
      • K(f);P-FLIGHT::QAR1(L)
      • B(d);SBLOCK::R(A)+S(E),DCHECK
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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).