Problem Display
PID: 17574 (2B1n2K/8/1B1k2N1/4p3/1N1bR3/3R1n2/8/8 w - - 0 1)

Keres, Paul P

Soviet Sport, 1947

2B1n2K/8/1B1k2N1/4p3/1N1bR3/3R1n2/8/8

#2

7 + 5


SOLUTION


  • SOUND
  • Tries
    • 1.Rdxd4+?
      • 1...exd4
        • 2.Re6#
      • 1...Sxd4!
  • Keys
    • 1.Rxe5!
      • 1...Sxe5
        • 2.Rxd4#
      • 1...Se1
        • 2.Rxd4#
      • 1...Sg1
        • 2.Rxd4#
      • 1...Sd2
        • 2.Rxd4#
      • 1...Sh2
        • 2.Rxd4#
      • 1...Sh4
        • 2.Rxd4#
      • 1...Sg5
        • 2.Rxd4#
      • 1...Sf6
        • 2.Re6#
      • 1...Sc7
        • 2.Bc5#
      • 1...Sg7
        • 2.Rd5#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK,XB(b)
      • Vars
        • P(c);OGATE,XR(A)::R1(C)
      • Refutation
        • S(a);XR(A)
  • Actual
    • R(C);P_SPINR(C),XP(c)
    • Vars
      • S(a);N_GUARD,XR(C)::R(A),XB(b)
      • S(a);N_GUARD::R(A),XB(b)
      • S(e);N_PINR(C)::R1(C)
      • S(e);SBLOCK::B(D)


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).