MESON Chess Problem Database

Problem Display
PID: 225369 (3Nn3/1K3R2/5B1b/3Rpk1B/4Npn1/8/5P2/7Q w - - 0 1)

Bakcsi, Gyorgy

3rd Comm., Praca, 1991

3Nn3/1K3R2/5B1b/3Rpk1B/4Npn1/8/5P2/7Q

#2

9 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf2
      • 2.Rxe5#
    • 1...Sh2
      • 2.Rxe5#
    • 1...Se3
      • 2.Rxe5#
    • 1...Sd6+
      • 2.Sxd6#
    • 1...Sc7
      • 2.Sd6#
    • 1...Sg7
      • 2.Sd6#
  • Tries
    • 1.Bxg4+?
      • 1...Kg6
        • 2.Qh5#
      • 1...Kxg4!
    • 1.Bh4+?
      • 1...Sef6
        • 2.Sd6#
      • 1...Sgf6!
    • 1.Bxe5+?
      • 1...Sgf6
        • 2.Ba1#
        • 2.Bb2#
        • 2.Bc3#
        • 2.Bd4#
        • 2.Bd6#
        • 2.Bxf6#
        • 2.Bc7#
        • 2.Bb8#
      • 1...Sef6!
    • 1.Qh3?
      • threat
        • 2.Rxe5#
      • 1...Sd6+
        • 2.Sxd6#
      • 1...Kxe4
        • 2.Qd3#
      • 1...f3
        • 2.Qxg4#
      • 1...Sxf6!
  • Keys
    • 1.f3!
      • threat
        • 2.fxg4#
      • 1...Sd6+
        • 2.Sxd6#
      • 1...Sgxf6
        • 2.Qh3#
      • 1...Sf2
        • 2.Rxe5#
      • 1...Sh2
        • 2.Rxe5#
      • 1...Se3
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • S(b);N_GUARD,XP(B)::R1(D),XP(c)
    • S(b);N_GUARD::R1(D),XP(c)
    • S(f);CHECK,N_GUARD::S(C),XS(f)
    • S(f);N_GUARD::S(C)
  • Tries
    • Try
      • B(E);CHECK,XS(b)
      • Vars
        • K(d);N_SPINP(c),S_FLIGHT::QAB1(A)
      • Refutation
        • K(d);N_SPINP(c),S_FLIGHT,XB(E)
    • Try
      • B(F);CHECK
      • Vars
        • S(f);P_SPINS(f)::S(C)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • B(F);CHECK,XP(c)
      • Refutation
        • S(f);P_SPINS(f)
    • Try
      • Q(A);P_PINS(b)
      • Threat
        • R1(D),XP(c)
      • Vars
        • S(f);CHECK,N_GUARD::S(C),XS(f)
        • K(d);N_SPINP(c),N_SPINS(b),OGATEB,S_FLIGHT,XS(C)::QAB1(A)
        • P(a);::QAB1(A),XS(b)
      • Refutation
        • S(f);XB(F)
  • Actual
    • P(B);
    • Threat
      • P(B),XS(b)
    • Vars
      • S(f);CHECK,N_GUARD::S(C),XS(f)
      • S(b);OGATEB,P_SPINS(b),XB(F)::QAB(A)
      • S(b);N_GUARD::R1(D),XP(c)
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).