MESON Chess Problem Database

Problem Display
PID: 221711 (6B1/3K4/2p2B2/5N2/4k1P1/4P1Pp/1N1n4/1b1Q2b1 w - - 0 1)

Easom, GWA

British Chess Magazine, 1928

6B1/3K4/2p2B2/5N2/4k1P1/4P1Pp/1N1n4/1b1Q2b1

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3
      • 2.Sd6#
    • 1...Sf3
      • 2.Qxb1#
  • Tries
    • 1.Sa4?
      • threat
        • 2.Sc5#
      • 1...Kd3
        • 2.Sc5#
      • 1...Sb3
        • 2.Sc3#
      • 1...c5
        • 2.Sxc5#
      • 1...Bxe3!
    • 1.Qa4+?
      • 1...Sc4
        • 2.Qxc6#
      • 1...Kf3!
  • Keys
    • 1.g5!
      • threat
        • 2.Qg4#
      • 1...Kxf5
        • 2.Bh7#
      • 1...Bxe3
        • 2.Sd6#
      • 1...Sf3
        • 2.Qxb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK,XP(C)::S(F)
    • S(c);N_GUARD,SBLOCK::QAB(A),XB(a)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • K(e);P_SPINS(c),S_FLIGHT::S(B)
        • S(c);::S(B)
        • P(f);::S(B),XP(f)
      • Refutation
        • B(b);XP(C)
    • Try
      • Q(A);CHECK
      • Vars
        • S(c);P_SPINS(c)::QAB(A),XP(f)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • P(E);
    • Threat
      • QAR2(A)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(F)::B(I)
      • B(b);SBLOCK,XP(C)::S(F)
      • S(c);N_GUARD,SBLOCK::QAB(A),XB(a)
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).