MESON Chess Problem Database

Problem Display
PID: 93856 (8/1p2r2r/1K2P3/5kpp/3QN3/6pp/8/3B4 w - - 0 1)

Pech, Jindrich

Ceske listy sachove, 1897

8/1p2r2r/1K2P3/5kpp/3QN3/6pp/8/3B4

#2

5 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Sd6#
    • 1...Kg6
      • 2.Qf6#
  • Tries
    • 1.Sxg3+?
      • 1...Kxe6
        • 2.Bb3#
      • 1...Kg6!
    • 1.Qe5+?
      • 1...Kg6
        • 2.Qf6#
        • 2.Qxg5#
      • 1...Kxe5!
    • 1.Qd5+?
      • 1...Kg6
        • 2.Qxg5#
      • 1...Kf4!
  • Keys
    • 1.Bc2!
      • threat
        • 2.Sc5#
      • 1...Rxe6+
        • 2.Sd6#
      • 1...Kf4
        • 2.Sd2#
      • 1...Kg4
        • 2.Sd2#
      • 1...Kxe6
        • 2.Sxg5#
      • 1...Kg6
        • 2.Qf6#
      • 1...g4
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT::QAR(B)+S(C)
    • K(c);S_FLIGHT::QAR1(B)
  • Tries
    • Try
      • S(C);CHECK,XP(a)
      • Vars
        • K(c);S_FLIGHT,XP(E)::B(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(c);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(B),XP(d)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • B(A);
    • Threat
      • B(A)+S(C)
    • Vars
      • R(g);CHECK,SBLOCK,XP(E)::B(A)+S(C),DCHECK
      • K(c);P-FLIGHT::QAR(B)+S(C)
      • K(c);S_FLIGHT::QAR(B)+S(C)
      • K(c);S_FLIGHT,XP(E)::S(C),XP(d)
      • K(c);S_FLIGHT::QAR1(B)
      • P(d);SBLOCK::QAR1(B)
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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).