Problem Display
PID: 90404 (1B6/3n4/2p5/5bK1/1r2kNpQ/1p6/4r1P1/3R1R2 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Die Schwalbe, 1997

1B6/3n4/2p5/5bK1/1r2kNpQ/1p6/4r1P1/3R1R2

#2

7 + 8


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Re1
      • 2.Rfxe1#
      • 2.Qxe1#
  • Tries
    • 1.Rfe1?
      • threat
        • 2.Rxe2#
      • 1...Ke3
        • 2.Rxe2#
      • 1...Rxe1
        • 2.Qxe1#
      • 1...Re3!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qxe2#
      • 1...Ke3
        • 2.Qxe2#
      • 1...Rxe1
        • 2.Rfxe1#
      • 1...Re3
        • 2.Qxb4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);P_PINR(a)
      • Threat
        • R(B),XR(a)
      • Vars
        • K(d);P-FLIGHT::R1(B),XR(a)
        • R(a);N_SPINR(a),OGATE,XR(B)::QAR(E),XR(a)
      • Refutation
        • R(a);
  • Actual
    • Q(E);P_PINR(a)
    • Threat
      • QAR2(E),XR(a)
    • Vars
      • K(d);P-FLIGHT::QAR1(E),XR(a)
      • R(a);N_SPINR(a),OGATE,XQ(E)::R(B),XR(a)
      • R(a);SBLOCK::QAR(E),XR(c)


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).