MESON Chess Problem Database

Problem Display
PID: 46165 (4KBB1/8/2p1RP2/1PPkP3/R2b2r1/2p1pNP1/1p1rp3/1Q6 w - - 0 1)

Labai, Zoltan

Taraba, Jozef

The Problemist, 2002

4KBB1/8/2p1RP2/1PPkP3/R2b2r1/2p1pNP1/1p1rp3/1Q6

#2

12 + 9

14580 Chess Compositions (Taraba) 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Rxc6#
      • 2.Qa2#
    • 1...Rf4
      • 2.Rxc6#
    • 1...Rh4
      • 2.Rxc6#
    • 1...Bxc5
      • 2.Rd6#
    • 1...Bxe5
      • 2.Rxe5#
  • Tries
    • 1.Rxd4+?
      • 1...Rgxd4
        • 2.Rxc6#
      • 1...Rdxd4!
    • 1.Re7+?
      • 1...Kxc5
        • 2.Rb7#
      • 1...Rxg8!
    • 1.Qe4+?
      • 1...Rxe4
        • 2.Rxc6#
      • 1...Kxe4!
    • 1.Qg6?
      • threat
        • 2.Rxc6#
      • 1...cxb5
        • 2.Rea6#
        • 2.Rb6#
      • 1...Rxg6!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qa2#
      • 1...Rxg5
        • 2.Qh1#
      • 1...Bxc5
        • 2.Re7#
      • 1...Bxe5
        • 2.Rxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(g);N_GUARD::B(L)+R(H),XP(i)
    • B(f);SBLOCK,XP(F)::B(L)+R(H),DCHECK
    • B(f);OGATE,XP(G)::B(L)+R(H),DCHECK,XB(f)
  • Tries
    • Try
      • R(D);CHECK,XB(f)
      • Vars
        • R(g);XR(D)::B(L)+R(H),XP(i)
      • Refutation
        • R(b);XR(D)
    • Try
      • R(H);CHECK
      • Vars
        • K(h);P-FLIGHT,XP(F)::B(K)+R(H)
      • Refutation
        • R(g);P_PINB(K),XB(L)
    • Try
      • Q(A);CHECK
      • Vars
        • R(g);SBLOCK,XQ(A)::B(L)+R(H),XP(i)
      • Refutation
        • K(h);P_SPINB(f),S_FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Threat
        • B(L)+R(H),XP(i)
      • Refutation
        • R(g);XQ(A)
  • Actual
    • S(B);
    • Threat
      • QAB(A)
    • Vars
      • R(g);N_GUARD,XS(B)::QAB(A)
      • B(f);SBLOCK,XP(F)::B(L)+R(H)
      • B(f);SBLOCK,XP(G)::B(L)+R(H),XP(i)
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).