MESON Chess Problem Database

Problem Display
PID: 176502 (8/B2B2K1/8/RN2k3/2p5/2b4P/2P1N1P1/4R3 w - - 0 1)

Valuska, Jan

Schach-Echo, 1970

8/B2B2K1/8/RN2k3/2p5/2b4P/2P1N1P1/4R3

#2

10 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4+
      • 2.Sbxc3#
    • 1...Kd5+
      • 2.Sexc3#
  • Tries
    • 1.Bd4+?
      • 1...Ke4
        • 2.Sbxc3#
        • 2.Sd6#
      • 1...Kd5
        • 2.Sexc3#
        • 2.Sf4#
      • 1...Bxd4!
  • Keys
    • 1.Bb8+!
      • 1...Ke4+
        • 2.Sexc3#
      • 1...Kd5+
        • 2.Sbxc3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);CHECK,P-FLIGHT::S(G),XB(a)
    • K(c);CHECK,P-FLIGHT::S(C),XB(a)
  • Tries
    • Try
      • B(H);CHECK
      • Refutation
        • B(a);XB(H)
  • Actual
    • B(H);CHECK
    • Vars
      • K(c);CHECK,P-FLIGHT::R(A)+S(C),DCHECK,XB(a)
      • K(c);CHECK,P-FLIGHT::R(F)+S(G),DCHECK,XB(a)
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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).