MESON Chess Problem Database

Problem Display
PID: 201404 (b1B5/1P1p2p1/Qprp1p2/b1P5/pnp5/B6P/rNP1PP1P/RNk1K2R w - - 0 1)

Dawson, Thomas Rayner

Eskilstuna Kuriren, 1922

b1B5/1P1p2p1/Qprp1p2/b1P5/pnp5/B6P/rNP1PP1P/RNk1K2R

#2

15 + 13

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc2
      • 2.Qxc4#
  • Tries
    • 1.Sd2+?
      • 1...Kxc2
        • 2.Qxc4#
      • 1...Rxa1!
    • 1.Sd1+?
      • 1...Kxc2
        • 2.Qxc4#
      • 1...Rxa3
        • 2.Sxa3#
      • 1...Rb2!
    • 1.Sxa4+?
      • 1...Kxc2
        • 2.Qxc4#
      • 1...Rxa3
        • 2.Sxa3#
      • 1...Rb2!
  • Keys
    • 1.Sd3+!
      • 1...Kxc2
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(M),XP(e)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(F)::QAR2(M),XP(e)
      • Refutation
        • R(b);XR(A)
    • Try
      • S(E);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(F)::QAR2(M),XP(e)
        • R(b);XB(J)::R(A)+S(B),XR(b)
      • Refutation
        • R(b);P_SPINR(b)
    • Try
      • S(E);CHECK,XP(c)
      • Vars
        • K(a);P-FLIGHT,XP(F)::QAR2(M),XP(e)
        • R(b);XB(J)::R(A)+S(B),XR(b)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • S(E);CHECK
    • Vars
      • K(a);P-FLIGHT,XP(F)::QAR2(M),XP(e)
HTML5 logo

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).