MESON Chess Problem Database

Problem Display
PID: 149870 (8/4bp1Q/Rr4p1/6kN/2RN2P1/6P1/4b1PK/B2B4 w - - 0 1)

Fasano, Alessandro

1/2 Prize, Telescacco 2000, 2004-2005

8/4bp1Q/Rr4p1/6kN/2RN2P1/6P1/4b1PK/B2B4

#2

11 + 6

23 Die Schwalbe 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Sf3#
    • 1...Bd3
      • 2.Sf3#
    • 1...Bf3
      • 2.Sxf3#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qh4#
      • 1...Kf6
        • 2.Sf3#
      • 1...Kxg4!
    • 1.Qh6+?
      • 1...Kxg4
        • 2.Bxe2#
      • 1...Kxh6!
  • Keys
    • 1.Sg7!
      • threat
        • 2.Qh4#
      • 1...Kxg4
        • 2.Sde6#
      • 1...Kf6
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::S(G)
    • B(a);N_GUARD::S(G),XB(a)
  • Tries
    • Try
      • S(I);
      • Threat
        • QAB1(K)
      • Vars
        • K(b);P_SPINR(c),S_FLIGHT::B(A)+S(G)
      • Refutation
        • K(b);P-FLIGHT,P_SPINB(a),XP(H)
    • Try
      • Q(K);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a),XP(H)::B(B),XB(a)
      • Refutation
        • K(b);S_FLIGHT,XQ(K)
  • Actual
    • S(I);
    • Threat
      • QAB1(K)
    • Vars
      • K(b);P-FLIGHT,P_SPINB(a),XP(H)::R(F)+S(G)
      • K(b);P_SPINR(c),S_FLIGHT::B(A)+S(G)
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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).