Problem Display
PID: 102767 (7N/RB1r1N2/4P3/5kB1/2Pp4/3K3P/6P1/8 w - - 0 1)

von Wardener, Friedrich Freiherr

Revue d'Echecs, 1903

7N/RB1r1N2/4P3/5kB1/2Pp4/3K3P/6P1/8

#2

10 + 3


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Bf3?
      • threat
        • 2.Bg4#
      • 1...Kxe6
        • 2.Bg4#
      • 1...Rxf7!
    • 1.Ra5+?
      • 1...Kxe6
        • 2.Re5#
      • 1...Rd5!
  • Keys
    • 1.Bc8!
      • 1...Kxe6
        • 2.Bxd7#
      • 1...Rxa7
        • 2.g4#
      • 1...Rxf7
        • 2.Ra5#
      • 1...Rd5
        • 2.g4#
      • 1...Rd6
        • 2.g4#
      • 1...Rb7
        • 2.g4#
      • 1...Rc7
        • 2.g4#
      • 1...Re7
        • 2.Ra5#
        • 2.g4#
      • 1...Rd8
        • 2.g4#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(H);
      • Threat
        • B(H)
      • Vars
        • K(b);S_FLIGHT,XP(F)::B(H)
      • Refutation
        • R(c);XS(I)
    • Try
      • R(G);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(F)::R1(G)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • B(H);
    • Vars
      • K(b);OGATEB,P_SPINR(c),S_FLIGHT,XP(F)::B(H),XR(c)
      • R(c);XR(G)::P(A)
      • R(c);N_GUARD,XS(I)::R(G)
      • R(c);::P(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).