Problem Display
PID: 106092 (6B1/8/2p5/2K5/pP1R4/prP1N3/kpQ5/b7 w - - 0 1)

Hadzi-Vaskov, Georgi

1st Comm., Vratnica-64, 2006

6B1/8/2p5/2K5/pP1R4/prP1N3/kpQ5/b7

#2

7 + 7


7551 Vratnica-64 2007
6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Kc4?
      • 1...Rxc3+
        • 2.Kxc3#
      • 1...Rxb4+
        • 2.Kxb4#
      • 1...c5!
    • 1.Sd5?
      • 1...Rxc3+
        • 2.Sxc3#
      • 1...Rxb4
        • 2.Sxb4#
      • 1...cxd5!
    • 1.Qxb3+?
      • 1...Kb1
        • 2.Rd1#
        • 2.Qd1#
        • 2.Qc2#
      • 1...axb3!
  • Keys
    • 1.Rc4!
      • 1...Rxc3
        • 2.Rxc3#
      • 1...Rxb4
        • 2.Rxb4#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(F);N_PINR(e),P-FLIGHT
      • Vars
        • R(e);CHECK,XP(B)::B(G)+K(F),XR(e)
        • R(e);CHECK,XP(D)::B(G)+K(F),XR(e)
      • Refutation
        • P(g);
    • Try
      • S(C);N_PINR(e)
      • Vars
        • R(e);CHECK,XP(B)::B(G)+S(C),DCHECK,XR(e)
        • R(e);XP(D)::B(G)+S(C),DCHECK,XR(e)
      • Refutation
        • P(g);XS(C)
    • Try
      • Q(A);CHECK,N_PINP(c),XR(e)
      • Refutation
        • P(f);P_SPINP(f),XQ(A)
  • Actual
    • R(E);N_PINR(e)
    • Vars
      • R(e);OGATE,P_PINR(E),XP(B)::B(G)+R(E),XR(e)
      • R(e);OGATE,XP(D)::B(G)+R(E),XR(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).