MESON Chess Problem Database

Problem Display
PID: 204574 (BB6/1R3p2/3b1P2/2p5/4n1P1/2N2kPQ/4bP2/5RK1 w - - 0 1)

Visserman, Eeltje

The Problemist, 1954

BB6/1R3p2/3b1P2/2p5/4n1P1/2N2kPQ/4bP2/5RK1

#2

11 + 6

5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf2
      • 2.Re7#
    • 1...Sxc3
      • 2.Rb3#
    • 1...Sxg3
      • 2.Rb4#
    • 1...Sxf6
      • 2.Rxf7#
  • Tries
    • 1.Rc7?
      • threat
        • 2.Bxe4#
      • 1...Bxg3
        • 2.Qxg3#
      • 1...Bd3!
  • Keys
    • 1.g5!
      • threat
        • 2.Qh5#
      • 1...Sxf2
        • 2.Re7#
      • 1...Sxc3
        • 2.Rb3#
      • 1...Sxg3
        • 2.Rb4#
      • 1...Sxf6
        • 2.Rxf7#

Anticipated by 17954(1952)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(c);OGATEB,P_SPINS(c),XP(C)::B(J)+R(I)
    • S(c);OGATEB,XS(D)::B(J)+R(I)
    • S(c);OGATEB,P_SPINS(c),XP(E)::B(J)+R(I)
    • S(c);OGATEB,XP(H)::B(J)+R(I),XP(f)
  • Tries
    • Try
      • R(I);P_PINS(c)
      • Threat
        • B(J),XS(c)
      • Vars
        • B(e);OGATE,P_SPINB(e),XP(E)::QAR1(F),XB(e)
      • Refutation
        • B(a);
  • Actual
    • P(G);
    • Threat
      • QAB(F)
    • Vars
      • S(c);OGATEB,P_SPINS(c),XP(C)::B(J)+R(I)
      • S(c);OGATEB,XS(D)::B(J)+R(I)
      • S(c);OGATEB,P_SPINS(c),XP(E)::B(J)+R(I)
      • S(c);OGATEB,XP(H)::B(J)+R(I),XP(f)
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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).