MESON Chess Problem Database

Problem Display
PID: 633 (8/3pRK2/8/nQPk1p2/5r2/4b3/2NP4/8 w - - 0 1)

Blake, Percy Francis

British Chess Magazine 13. Ty., 1906-1907

8/3pRK2/8/nQPk1p2/5r2/4b3/2NP4/8

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sxe3#
    • 1...Bd4
      • 2.Sb4#
  • Tries
    • 1.c6+?
      • 1...Kd6
        • 2.Rxd7#
      • 1...Bc5!
  • Keys
    • 1.d4!
      • threat
        • 2.Re5#
      • 1...Rxd4
        • 2.Sxe3#
      • 1...Bxd4
        • 2.Sb4#
      • 1...Re4
        • 2.Rxd7#
      • 1...Sc4
        • 2.Qb7#
      • 1...Sc6
        • 2.Qb3#
      • 1...d6
        • 2.c6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK::S(A),XB(a)
    • B(a);SBLOCK,S_CUTR(b)::S(A)
  • Tries
    • Try
      • P(D);CHECK
      • Vars
        • K(d);P-FLIGHT::R1(E),XP(f)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • P(B);
    • Threat
      • R1(E)
    • Vars
      • R(b);SBLOCK,XP(B)::S(A),XB(a)
      • B(a);SBLOCK,XP(B)::S(A)
      • R(b);SBLOCK::R(E),XP(f)
      • S(c);N_GUARD,SBLOCK::QAB(C)
      • P(f);SBLOCK::QAR(C)+P(D)
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).