MESON Chess Problem Database

Problem Display
PID: 218583 (b1r2R1b/1B4B1/8/3r1pn1/2pPkpR1/2P4N/4P1P1/4K2N w - - 0 1)

Courtin, GE

Cincinnati Commercial, 1882

b1r2R1b/1B4B1/8/3r1pn1/2pPkpR1/2P4N/4P1P1/4K2N

#2

11 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kf2?
      • threat
        • 2.Sg3#
        • 2.Sxg5#
        • 2.Rxf4#
      • 1...fxg4
        • 2.Sxg5#
        • 2.Rxf4#
      • 1...Sf3
        • 2.Sg3#
        • 2.Rxf4#
        • 2.gxf3#
      • 1...Se6
        • 2.Sg3#
      • 1...Sf7
        • 2.Sg3#
        • 2.Rxf4#
      • 1...Sh7
        • 2.Sg3#
        • 2.Rxf4#
      • 1...Sxh3+!
    • 1.Re8+?
      • 1...Se6
        • 2.Rxe6#
      • 1...Rxe8!
  • Keys
    • 1.Kd2!
      • threat
        • 2.S1f2#
        • 2.Sg3#
        • 2.S3f2#
        • 2.Sxg5#
        • 2.Rxf4#
      • 1...Sf3+
        • 2.exf3#
        • 2.gxf3#
      • 1...Sxh3
        • 2.Sg3#
      • 1...fxg4
        • 2.S1f2#
        • 2.S3f2#
        • 2.Sxg5#
        • 2.Rxf4#
      • 1...Se6
        • 2.S1f2#
        • 2.Sg3#
        • 2.S3f2#
      • 1...Sf7
        • 2.S1f2#
        • 2.Sg3#
        • 2.S3f2#
        • 2.Rxf4#
      • 1...Sh7
        • 2.S1f2#
        • 2.Sg3#
        • 2.S3f2#
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • S(f);::S(B)
      • Refutation
        • S(f);CHECK,XS(F)
    • Try
      • R(K);CHECK
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::R(K),XS(f)
      • Refutation
        • R(h);XR(K)
  • Actual
    • K(A);P_SPINP(G),S_FLIGHT
    • Threat
      • DUALS(5)
    • Vars
      • S(f);XS(F)::S(B)
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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).