MESON Chess Problem Database

Problem Display
PID: 247682 (8/3p4/K1p2p2/8/1bk2p1R/4Q3/pprpn2B/r3nB2 w - - 0 1)

Braithwaite, Kenneth Holmes

The Problemist, 1990

8/3p4/K1p2p2/8/1bk2p1R/4Q3/pprpn2B/r3nB2

#2

5 + 13

SOLUTION

  • SOUND
  • Keys
    • 1.Qxf4+!
      • 1...Kb3
        • 2.Qxb4#
      • 1...Kc3
        • 2.Qc4#
      • 1...Kd3
        • 2.Qd4#
      • 1...Kc5
        • 2.Qd6#
      • 1...Kd5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(C);CHECK,XP(j)
    • Vars
      • K(i);N_SPINS(g),OGATE,S_FLIGHT::QAR1(C),XB(h)
      • K(i);N_SPINS(g),P-FLIGHT::QAR1(C)
      • K(i);S_FLIGHT::QAR1(C)
      • K(i);N_SPINS(g),P-FLIGHT::QAB1(C)
      • K(i);N_SPINS(g),S_FLIGHT::QAR2(C)
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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).