Problem Display
PID: 119945 (8/Q7/p2R3K/P1PP4/Rn1k4/5P2/1N2P3/4B3 w - - 0 1)

Traxler, Karel Peter

Deutsche Schachzeitung, 1912

8/Q7/p2R3K/P1PP4/Rn1k4/5P2/1N2P3/4B3

#2

11 + 3


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Kg5?
      • 1...Ke5
        • 2.Bc3#
        • 2.Qg7#
      • 1...Ke3!
    • 1.Sd1?
      • 1...Kc4
        • 2.Rxb4#
      • 1...Ke5!
    • 1.Sd3?
      • 1...Kc4
        • 2.Rxb4#
      • 1...Ke3!
    • 1.Rxb4+?
      • 1...Ke3
        • 2.Re4#
        • 2.Re6#
        • 2.Qe7#
      • 1...Ke5!
    • 1.Qg7+?
      • 1...Ke3
        • 2.Qe5#
      • 1...Kxc5!
    • 1.Qh7?
      • 1...Ke3
        • 2.Qe4#
      • 1...Ke5
        • 2.Qe4#
      • 1...Kxc5!
  • Keys
    • 1.Sc4!
      • 1...Kxc4
        • 2.Rxb4#
      • 1...Sxd5
        • 2.c6#
      • 1...Sa2
        • 2.c6#
      • 1...Sc2
        • 2.c6#
      • 1...Sd3
        • 2.e3#
      • 1...Sc6
        • 2.dxc6#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(J);S_FLIGHT
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(b);P-FLIGHT::R1(E),XS(a)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(b);P-FLIGHT::R1(E),XS(a)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • R(E);CHECK,XS(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(K);CHECK
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::QAR2(K)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT,XP(G)
    • Try
      • Q(K);
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::QAR1(K)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT,XP(G)
  • Actual
    • S(B);N_PINS(a)
    • Vars
      • K(b);OGATEB,P-FLIGHT,P_SPINS(a),XS(B)::R1(E),XS(a)
      • S(a);P_SPINS(a),XP(H)::QAB(K)+P(G)
      • S(a);::QAB(K)+P(G)
      • S(a);SBLOCK::P(C)
      • S(a);OGATE::R(I)+P(H),XS(a)


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).