MESON Chess Problem Database

Problem Display
PID: 78951 (3R3b/3N1pQ1/5n2/KB3p2/3k1N1R/5p2/1ppprn2/6B1 w - - 0 1)

Mees, Wouter Jacob Gregorius

2nd HM., Koldijk MT, 2006

3R3b/3N1pQ1/5n2/KB3p2/3k1N1R/5p2/1ppprn2/6B1

#2

8 + 11

102 Probleemblad 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Sxf6+?
      • 1...Ke3
        • 2.S4d5#
        • 2.Rd3#
      • 1...Kc5
        • 2.Sd3#
        • 2.Rd5#
      • 1...Ke5
        • 2.Rd5#
      • 1...Kc3!
  • Keys
    • 1.Sc5+!
      • 1...Kc3
        • 2.Sd5#
      • 1...Ke3
        • 2.Rd3#
      • 1...Kxc5
        • 2.Sd3#
      • 1...Ke5
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK,XS(i)
      • Vars
        • K(g);N_SPINS(e),S_FLIGHT::R1(H)
      • Refutation
        • K(g);N_SPINS(e),S_FLIGHT
  • Actual
    • S(F);CHECK
    • Vars
      • K(g);N_SPINS(e),P_SPINS(i),S_FLIGHT::S(B)
      • K(g);OGATE,S_FLIGHT::R1(H)
      • K(g);S_FLIGHT,XS(F)::S(B)
      • K(g);N_SPINS(e),P_SPINS(i),S_FLIGHT::R1(H)
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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).