MESON Chess Problem Database

Problem Display
PID: 205007 (q1r2B2/n7/1p2k1P1/3R2P1/3pN3/2PP4/Q7/7K w - - 0 1)

Barry, Henry William

American Chess Bulletin, 1912

q1r2B2/n7/1p2k1P1/3R2P1/3pN3/2PP4/Q7/7K

#2

9 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rc5+?
      • 1...Qd5
        • 2.Qxd5#
      • 1...Kd7!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qe2#
      • 1...Qxd5+
        • 2.Qxd5#
      • 1...Qb8
        • 2.Rc5#
      • 1...Sc6
        • 2.Ra5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK,P_SPINS(E)
      • Vars
        • Q(e);N_GUARD,P_SPINQ(e)::QAB1(B),XQ(e)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(E);P_SPINR(F)
    • Threat
      • QAR(B)
    • Vars
      • Q(e);CHECK,OGATE,P_SPINQ(e),XR(F)::QAB1(B),XQ(e)
      • Q(e);N_PINR(F)::QAB(B)+R(F)
      • S(d);N_PINR(F)::QAB(B)+R(F)
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).