MESON Chess Problem Database

Problem Display
PID: 169030 (4r3/2N1pp2/1PPRPB2/R2BPp2/K1pkp3/p6b/1bPP4/5N2 w - - 0 1)

Havran, Jozef

SuperProblem, 2017

4r3/2N1pp2/1PPRPB2/R2BPp2/K1pkp3/p6b/1bPP4/5N2

#2

13 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...exd6
      • 2.exd6#
    • 1...fxe6
      • 2.Sxe6#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Se2#
      • 1...exf6
        • 2.Bxe4#
      • 1...Bf1
        • 2.Sxf5#
      • 1...Bg4!
    • 1.Bxc4+?
      • 1...Kxc4
        • 2.Se3#
      • 1...exd6!
    • 1.exf7?
      • threat
        • 2.Se6#
      • 1...exd6
        • 2.e6#
      • 1...exf6
        • 2.Be6#
      • 1...e6
        • 2.Bxe6#
      • 1...f4!
  • Keys
    • 1.Kb4!
      • threat
        • 2.Sb5#
      • 1...Bc3+
        • 2.dxc3#
      • 1...exd6
        • 2.exd6#
      • 1...exf6
        • 2.Bxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(h);OGATE,XR(J)::B(L)+P(G),XP(h)
    • P(i);XP(K)::S(M),XP(i)
  • Tries
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • P(h);N_GUARD,XB(L)::R(J)+B(F),XP(f)
        • B(c);N_GUARD::S(A),XP(g)
      • Refutation
        • B(c);
    • Try
      • B(F);CHECK,XP(d)
      • Vars
        • K(e);P-FLIGHT,XB(F)::S(A)
      • Refutation
        • P(h);XR(J)
    • Try
      • P(K);XP(i)
      • Threat
        • S(M)
      • Vars
        • P(h);N_GUARD,XR(J)::B(L)+P(G)
        • P(h);N_GUARD,XB(L)::R(J)+B(F)
        • P(h);N_GUARD::R(J)+B(F),XP(h)
      • Refutation
        • P(g);
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • S(M)
    • Vars
      • B(a);CHECK,OGATE::P(C),XB(a)
      • P(h);OGATE,XR(J)::B(L)+P(G),XP(h)
      • P(h);N_GUARD,XB(L)::R(J)+B(F),XP(d)
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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).