MESON Chess Problem Database

Problem Display
PID: 266085 (8/3N2K1/2p5/4N1p1/1Qq2kB1/8/5B2/5b2 w - - 0 1)

Mlynka, Karol

Vokal, Stanislav

Sachova skladba, 2022

8/3N2K1/2p5/4N1p1/1Qq2kB1/8/5B2/5b2

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Qxd4#
    • 1...Bh3
      • 2.Qxc4#
  • Tries
    • 1.Qf8+?
      • 1...Ke4
        • 2.Bf3#
        • 2.Qf3#
      • 1...Qf7+!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Sg6#
      • 1...Kxe5
        • 2.Qb8#
      • 1...Bd3
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(b);OGATE,P_PINS(D)::QAR2(B),XQ(b)
    • B(a);N_GUARD::QAR(B),XQ(b)
  • Tries
    • Try
      • Q(B);CHECK,N_PINQ(b)
      • Refutation
        • Q(b);CHECK,P_SPINQ(b)
  • Actual
    • S(E);
    • Threat
      • S(D)
    • Vars
      • K(c);N_SPINQ(b),OGATEB,S_FLIGHT,XS(D)::QAB(B)
      • B(a);N_GUARD::S(D),XB(a)
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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).