MESON Chess Problem Database

Problem Display
PID: 148630 (b7/4p3/P2kP3/1P1p4/1P1Q1N2/1B4B1/8/7K w - - 0 1)

Dawson, Thomas Rayner

Pittsburgh Leader, 1913

(First published on Sun Jul 6 1913)

b7/4p3/P2kP3/1P1p4/1P1Q1N2/1B4B1/8/7K

#2

9 + 4

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Qe3?
      • threat
        • 2.Se2#
        • 2.Sg2#
        • 2.Sd3#
        • 2.Sh3#
        • 2.Sxd5#
        • 2.Sh5#
        • 2.Sg6#
      • 1...d4+
        • 2.Sg2#
        • 2.Sd5#
      • 1...Kc7!
    • 1.Qb6+?
      • 1...Bc6
        • 2.Qb8#
      • 1...Ke5!
    • 1.Qa7?
      • threat
        • 2.Qb8#
      • 1...d4+
        • 2.Sg2#
      • 1...Ke5!
    • 1.Qe4?
      • threat
        • 2.Se2#
        • 2.Sg2#
        • 2.Sd3#
        • 2.Sh3#
        • 2.Sxd5#
        • 2.Sh5#
        • 2.Sg6#
      • 1...dxe4
        • 2.Se2#
        • 2.Sg2#
        • 2.Sd3#
        • 2.Sh3#
        • 2.Sh5#
        • 2.Sg6#
      • 1...d4
        • 2.Se2#
        • 2.Sg2#
        • 2.Sd3#
        • 2.Sh3#
        • 2.Sd5#
        • 2.Sh5#
        • 2.Sg6#
      • 1...Kc7!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qb8#
      • 1...d4+
        • 2.Sg2#
      • 1...Kc7
        • 2.Sxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);N_PINP(a)
      • Threat
        • DUALS(7)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK,N_PINP(a)
      • Vars
        • B(d);P_SPINB(d)::QAB(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);N_PINP(a)
      • Threat
        • QAB(E)
      • Vars
        • P(a);CHECK::B(C)+S(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);N_PINP(a)
      • Threat
        • DUALS(7)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(E);N_PINP(a)
    • Threat
      • QAB(E)
    • Vars
      • P(a);CHECK::B(C)+S(F)
      • K(b);S_FLIGHT::B(C)+S(F),DCHECK,XP(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).