MESON Chess Problem Database

Problem Display
PID: 242727 (K2R4/5nBb/1p2P3/2pN4/P1kN4/P7/P3PrP1/2bR3q w - - 0 1)

Bakcsi, Gyorgy

Sachove umeni (Ceskoslovensky sach), 1965

K2R4/5nBb/1p2P3/2pN4/P1kN4/P7/P3PrP1/2bR3q

#2

12 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.exd3#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Sxb6#
      • 1...Bxa3
        • 2.Sd2#
      • 1...Se5
        • 2.Sxe5#
      • 1...b5
        • 2.Sb6#
      • 1...Be4!
    • 1.Sc6?
      • threat
        • 2.Sxb6#
      • 1...Se5
        • 2.Sxe5#
      • 1...b5
        • 2.Sb6#
        • 2.Sa5#
      • 1...Rf6!
    • 1.Se3+?
      • 1...Kc3
        • 2.Sb5#
      • 1...Bxe3!
    • 1.Rxc1+?
      • 1...Bc2
        • 2.Rxc2#
      • 1...Qxc1!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sxb6#
      • 1...Qxg2
        • 2.Rxc1#
      • 1...Bxa3
        • 2.Sfe3#
      • 1...Se5
        • 2.Sd6#
      • 1...b5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(h);OGATE::P(C),XB(h)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(H),XP(f)
      • Vars
        • B(a);N_GUARD,XP(E)::S(G)
        • S(g);N_GUARD::S(G),XS(g)
        • P(f);::S(H)
      • Refutation
        • B(h);P_PINS(H)
    • Try
      • S(G);
      • Threat
        • S(H),XP(f)
      • Vars
        • S(g);N_GUARD::S(G),XS(g)
      • Refutation
        • R(c);
    • Try
      • S(H);CHECK,P_SPINP(D)
      • Vars
        • K(d);P-FLIGHT::B(J)+S(G),DCHECK
      • Refutation
        • B(a);XS(H)
    • Try
      • R(A);CHECK,XB(a)
      • Vars
        • B(h);N_GUARD,P_SPINB(h)::R(A),XB(h)
      • Refutation
        • Q(b);XR(A)
  • Actual
    • S(G);
    • Threat
      • S(H),XP(f)
    • Vars
      • Q(b);N_GUARD,P_PINS(H),XP(D)::R(A),XB(a)
      • B(a);N_GUARD,XP(E)::S(G)
      • S(g);N_GUARD::S(G)
      • P(f);::S(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).