MESON Chess Problem Database

Problem Display
PID: 230612 (B3Nn2/7R/3Pp3/2B1kp2/5N2/R2p1pP1/2prpP2/r2bQ2K w - - 0 1)

Fulpius, Jaques

Schweizerische Schachzeitung, 1987

B3Nn2/7R/3Pp3/2B1kp2/5N2/R2p1pP1/2prpP2/r2bQ2K

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sg6
      • 2.Sxg6#
    • 1...Sd7
      • 2.Sg6#
    • 1...Sxh7
      • 2.Sg6#
  • Tries
    • 1.Rxd3?
      • threat
        • 2.Bd4#
        • 2.Re3#
      • 1...Rxa8
        • 2.Re3#
      • 1...Rxd3
        • 2.Sxd3#
      • 1...Ra3
        • 2.Bd4#
      • 1...Ra4!
  • Keys
    • 1.Sxe2!
      • threat
        • 2.Bd4#
      • 1...Rxe2
        • 2.Qc3#
      • 1...Bxe2
        • 2.Qxa1#
      • 1...dxe2
        • 2.Re3#
      • 1...fxe2
        • 2.f4#
      • 1...f4
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • S(k);N_GUARD::S(F),XS(k)
    • S(k);N_GUARD::S(F)
    • S(k);N_GUARD,XR(I)::S(F)
  • Tries
    • Try
      • R(D);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XB(J)::R(D)
        • R(d);XR(D)::S(F),XR(d)
        • R(a);::B(G)
      • Refutation
        • R(a);
  • Actual
    • S(F);XP(e)
    • Threat
      • B(G)
    • Vars
      • R(d);OGATE,P_SPINR(d),XS(F)::QAB(A)
      • B(b);OGATE,P_PINQ(A),P_SPINB(b),XS(F)::QAB(A),XR(a)
      • P(f);OGATE,P_SPINP(f),XS(F)::R(D)
      • P(g);OGATE,P_SPINP(g),XS(F)::P(C)
      • P(i);OGATEB::R(I)
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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).