MESON Chess Problem Database

Problem Display
PID: 234032 (q7/2N5/1Q2N2p/4p3/4k1B1/2ppB3/4n2K/4r2n w - - 0 1)

Palkoska, Emil

Il Due Mosse, 1953

q7/2N5/1Q2N2p/4p3/4k1B1/2ppB3/4n2K/4r2n

#2

6 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...h5
      • 2.Sg5#
  • Tries
    • 1.Bd2?
      • threat
        • 2.Qe3#
      • 1...Qa7
        • 2.Qc6#
      • 1...Sc1
        • 2.Qb4#
      • 1...Sg1
        • 2.Qb4#
      • 1...Seg3
        • 2.Qb4#
      • 1...Sd4
        • 2.Sc5#
      • 1...Sf4
        • 2.Qb4#
      • 1...cxd2!
    • 1.Bf3+?
      • 1...Kf5
        • 2.Sg7#
      • 1...Kxf3!
  • Keys
    • 1.Bxh6!
      • threat
        • 2.Qe3#
      • 1...Qa7
        • 2.Qc6#
      • 1...Sc1
        • 2.Qb4#
      • 1...Sg1
        • 2.Qb4#
      • 1...Seg3
        • 2.Qb4#
      • 1...Sd4
        • 2.Sc5#
      • 1...Sf4
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • P(h);N_GUARD::S(E)
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR1(D)
      • Vars
        • Q(i);N_GUARD::QAB(D)
        • S(c);N_GUARD::QAR(D)
        • S(c);SBLOCK::S(E)
      • Refutation
        • P(d);XB(B)
    • Try
      • B(C);CHECK
      • Vars
        • K(f);S_FLIGHT::S(E)
      • Refutation
        • K(f);S_FLIGHT,XB(C)
  • Actual
    • B(B);XP(h)
    • Threat
      • QAR1(D)
    • Vars
      • Q(i);N_GUARD::QAB(D)
      • S(c);N_GUARD::QAR(D)
      • S(c);SBLOCK::S(E)
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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).