MESON Chess Problem Database

Problem Display
PID: 225402 (QK6/p7/p7/N1p2p2/2Pp1P2/1R1Nk3/1P4R1/7B w - - 0 1)

Bosak, Juraj

Praca, 1952

QK6/p7/p7/N1p2p2/2Pp1P2/1R1Nk3/1P4R1/7B

#2

10 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kb7?
      • 1...Ke4
        • 2.Re2#
        • 2.Rg3#
      • 1...Kf3!
    • 1.Se5+?
      • 1...Kxf4
        • 2.Sg6#
      • 1...d3!
    • 1.Rb4?
      • 1...Kxd3
        • 2.Rb3#
        • 2.Qf3#
      • 1...cxb4!
    • 1.Rb5?
      • 1...Kxd3
        • 2.Rb3#
        • 2.Qf3#
      • 1...axb5!
    • 1.Rb6?
      • 1...Kxd3
        • 2.Rb3#
        • 2.Qf3#
      • 1...axb6!
    • 1.Qe4+?
      • 1...Kxe4
        • 2.Re2#
        • 2.Rg3#
      • 1...fxe4!
    • 1.Qxa7?
      • 1...Ke4
        • 2.Re2#
        • 2.Rg3#
      • 1...Kf3!
  • Keys
    • 1.Rb7!
      • 1...Kxd3
        • 2.Rb3#
      • 1...Kf3
        • 2.Re7#
      • 1...Ke4
        • 2.Rg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(J);P-FLIGHT
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(G)::S(E)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • R(D);
      • Refutation
        • P(c);XR(D)
    • Try
      • R(D);
      • Refutation
        • P(e);XR(D)
    • Try
      • R(D);
      • Refutation
        • P(f);XR(D)
    • Try
      • Q(I);CHECK
      • Refutation
        • P(d);XQ(I)
    • Try
      • Q(I);XP(f)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XS(E)::R(D)
      • K(a);P-FLIGHT::QAB(I)+R(D)
      • K(a);P-FLIGHT::B(A)+R(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).