MESON Chess Problem Database

Problem Display
PID: 268917 (7Q/8/P3p3/6p1/6Nb/4Np2/4PP1B/4K2k w - - 0 1)

Kapustin, Fedor Mikhailovich

Problemist Ukraini, 2023

7Q/8/P3p3/6p1/6Nb/4Np2/4PP1B/4K2k

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf2+
      • 2.Sxf2#
    • 1...fxe2
      • 2.Qa8#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Qa1#
      • 1...Bxf2
        • 2.Sxf2#
      • 1...fxe2
        • 2.Qa8#
      • 1...e5!
    • 1.Qe5?
      • 1...Bxf2+
        • 2.Sxf2#
      • 1...fxe2
        • 2.Qe4#
      • 1...Bg3!
    • 1.Qf6?
      • threat
        • 2.Qxf3#
      • 1...fxe2
        • 2.Qf3#
      • 1...Bxf2+!
    • 1.Qf8?
      • threat
        • 2.Qxf3#
      • 1...fxe2
        • 2.Qf3#
        • 2.Qa8#
      • 1...Bxf2+!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Kd2#
      • 1...Bxf2+
        • 2.Kxf2#
      • 1...fxe2
        • 2.Kxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(c);CHECK,XP(C)::S(F),XB(c)
    • P(b);OGATEB,XP(B)::QAB(H)
  • Tries
    • Try
      • K(A);N_SPINP(C),S_FLIGHT
      • Threat
        • QAB1(H)
      • Vars
        • B(c);XP(C)::S(F),XB(c)
        • P(b);OGATEB,XP(B)::QAB(H)
      • Refutation
        • P(e);
    • Try
      • Q(H);
      • Vars
        • B(c);CHECK,XP(C)::S(F),XB(c)
        • P(b);OGATEB,XP(B)::QAB(H)
      • Refutation
        • B(c);
    • Try
      • Q(H);
      • Threat
        • QAB(H),XP(b)
      • Vars
        • P(b);XP(B)::QAB(H)
      • Refutation
        • B(c);CHECK,XP(C)
    • Try
      • Q(H);
      • Threat
        • QAB(H),XP(b)
      • Refutation
        • B(c);CHECK,XP(C)
  • Actual
    • Q(H);
    • Threat
      • QAR(H)+K(A)
    • Vars
      • B(c);CHECK,XP(C)::QAR(H)+K(A),XB(c)
      • P(b);XP(B)::QAR(H)+K(A),XP(b)
HTML5 logo

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).