Problem Display
PID: 242720 (1N5n/3P3r/K2p4/ppkP4/qp4R1/rb2n3/3R4/B3NQb1 w - - 0 1)

Bakcsi, Gyorgy

Schakend Nederland, 1961

1N5n/3P3r/K2p4/ppkP4/qp4R1/rb2n3/3R4/B3NQb1

#2

9 + 12


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Rxd7
      • 2.Sxd7#
    • 1...Bxd5
      • 2.Bd4#
    • 1...Sxd5
      • 2.Sd3#
  • Tries
    • 1.Kb7?
      • threat
        • 2.Sa6#
      • 1...Rxd7+
        • 2.Sxd7#
      • 1...Bxd5+!
    • 1.Rg8?
      • threat
        • 2.Rc8#
      • 1...Rxd7
        • 2.Sxd7#
      • 1...Bxd5
        • 2.Bd4#
      • 1...Sxd5!
    • 1.Qf8?
      • threat
        • 2.Qc8#
      • 1...Rxd7
        • 2.Sxd7#
      • 1...Sxd5
        • 2.Sd3#
      • 1...Bxd5!
  • Keys
    • 1.Ka7!
      • threat
        • 2.Sa6#
      • 1...Rxd7+
        • 2.Sxd7#
      • 1...Bxd5
        • 2.Bd4#
      • 1...Sxd5
        • 2.Sd3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(k);XP(H)::S(I),XR(k)
    • B(c);SBLOCK,XP(F)::B(A)
    • S(d);SBLOCK,XP(F)::S(B)
  • Tries
    • Try
      • K(G);P_SPINP(H),S_FLIGHT
      • Threat
        • S(I)
      • Vars
        • R(k);CHECK,XP(H)::S(I),XR(k)
      • Refutation
        • B(c);CHECK,XP(F)
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • R(k);XP(H)::S(I),XR(k)
        • B(c);SBLOCK,XP(F)::B(A)
      • Refutation
        • S(d);XP(F)
    • Try
      • Q(C);P_PINP(j)
      • Threat
        • QAR(C)
      • Vars
        • R(k);XP(H)::S(I),XR(k)
        • S(d);SBLOCK,XP(F)::S(B)
      • Refutation
        • B(c);XP(F)
  • Actual
    • K(G);P-FLIGHT,P_SPINP(H)
    • Threat
      • S(I)
    • Vars
      • R(k);CHECK,XP(H)::S(I),XR(k)
      • B(c);SBLOCK,XP(F)::B(A)
      • S(d);SBLOCK,XP(F)::S(B)


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).