Problem Display
PID: 91494 (4B3/1N2K3/4P3/7N/2p1kP2/2P1p2P/4p3/4B3 w - - 0 1)

Issler, Werner

4th Prize=, Probleemblad 104. TT, 1959

4B3/1N2K3/4P3/7N/2p1kP2/2P1p2P/4p3/4B3

#2

9 + 4


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Kd3
      • 2.Bg6#
    • 1...Kf3
      • 2.Bc6#
    • 1...Kd5
      • 2.Sf6#
    • 1...Kf5
      • 2.Sd6#
  • Tries
    • 1.Kd6?
      • 1...Kd3
        • 2.Bg6#
      • 1...Kf3
        • 2.Bc6#
      • 1...Kf5!
    • 1.Kf6?
      • 1...Kd3
        • 2.Bg6#
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5!
    • 1.Kd7?
      • 1...Kd3
        • 2.Bg6#
      • 1...Kd5
        • 2.Sf6#
      • 1...Kf5
        • 2.Sd6#
      • 1...Kf3!
    • 1.Kf7?
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Sf6#
      • 1...Kf5
        • 2.Sd6#
      • 1...Kd3!
    • 1.Sd6+?
      • 1...Kd3
        • 2.Bg6#
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5!
  • Keys
    • 1.Ba4!
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Sf6#
      • 1...Kf5
        • 2.Bc2#

This is a version of 42442

FEATURES


  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::B(I)
    • K(d);S_FLIGHT::S(E)
    • K(d);S_FLIGHT::S(G)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Vars
        • K(d);S_FLIGHT::B(I)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • K(H);S_FLIGHT
      • Vars
        • K(d);S_FLIGHT::B(I)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • K(H);P-FLIGHT
      • Vars
        • K(d);S_FLIGHT::B(I)
        • K(d);S_FLIGHT::S(E)
        • K(d);S_FLIGHT::S(G)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • K(H);P-FLIGHT
      • Vars
        • K(d);S_FLIGHT::B(I)
        • K(d);S_FLIGHT::S(E)
        • K(d);S_FLIGHT::S(G)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • K(d);S_FLIGHT::B(I)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • B(I);
    • Vars
      • K(d);S_FLIGHT::S(G)
      • K(d);S_FLIGHT::B(I)
      • K(d);S_FLIGHT::S(E)


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).