MESON Chess Problem Database

Problem Display
PID: 269662 (1B1b4/1Br2N2/4n3/5p2/2Qn1k2/1p2p2P/1P2PP1P/2K3N1 w - - 0 1)

Sardella, Giuseppe

Best Problems, 2023

1B1b4/1Br2N2/4n3/5p2/2Qn1k2/1p2p2P/1P2PP1P/2K3N1

#2

11 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Bxc7+?
      • 1...Sxc7
        • 2.Qxd4#
      • 1...Bxc7!
  • Keys
    • 1.Qc3!
      • threat
        • 2.fxe3#
      • 1...Sxe2+
        • 2.Sxe2#
      • 1...exf2
        • 2.e3#
      • 1...Sc6
        • 2.Qxe3#
      • 1...Sc2
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(K);CHECK,N_SPINQ(H),XR(g)
      • Vars
        • S(f);XB(K)::QAR2(H),XS(c)
      • Refutation
        • B(h);XB(K)
  • Actual
    • Q(H);N_PINS(c)
    • Threat
      • P(E),XP(b)
    • Vars
      • S(c);CHECK,XP(D)::S(B),XS(c)
      • P(b);OGATE,XP(E)::P(D)
      • S(c);N_PINQ(H)::QAB1(H),XP(b)
      • S(c);N_PINQ(H)::QAB1(H)
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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).