MESON Chess Problem Database

Problem Display
PID: 201403 (4q3/8/8/2p1PB2/5N2/3N1kBp/5P2/R3K3 w Q - 0 1)

Dawson, Thomas Rayner

L'Alfiere di Re, 1922

4q3/8/8/2p1PB2/5N2/3N1kBp/5P2/R3K3

#2

8 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5+
      • 2.Sxe5#
  • Tries
    • 1.Kf1?
      • threat
        • 2.Se1#
      • 1...Qxe5
        • 2.Sxe5#
      • 1...Qb5!
  • Keys
    • 1.0-0-0!
      • threat
        • 2.Se1#
      • 1...Qxe5
        • 2.Sxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(d);CHECK,XP(G)::S(D),XQ(d)
  • Tries
    • Try
      • K(B);N_SPINP(G),P-FLIGHT
      • Threat
        • S(D)
      • Vars
        • Q(d);XP(G)::S(D),XQ(d)
      • Refutation
        • Q(d);P_PINS(D)
  • Actual
    • K(B);0-0-0,N_SPINP(G)
    • Threat
      • S(D)
    • Vars
      • Q(d);XP(G)::S(D),XQ(d)
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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).