MESON Chess Problem Database

Problem Display
PID: 84660 (K7/B7/3P1n2/4pN2/P2pk1PR/RB3bP1/2P1p3/4Q3 w - - 0 1)

Fillery, William Edmund Frank

Vancouver Province, 1957

K7/B7/3P1n2/4pN2/P2pk1PR/RB3bP1/2P1p3/4Q3

#2

12 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Qxh1#
      • 2.Qxe2#
    • 1...Bg2
      • 2.Qxe2#
    • 1...d3
      • 2.Qb4#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Qd3#
      • 1...d3
        • 2.Qe3#
        • 2.Qb4#
        • 2.Qxd3#
        • 2.cxd3#
      • 1...e1S!
  • Keys
    • 1.Se7!
      • 1...Ke3+
        • 2.Bd5#
      • 1...Bxg4
        • 2.Qxe2#
      • 1...Sxg4
        • 2.Bd5#
      • 1...Bh1
        • 2.Qxe2#
      • 1...Bg2
        • 2.Qxe2#
      • 1...Sd5
        • 2.Bxd5#
      • 1...Sh5
        • 2.Bd5#
      • 1...Sd7
        • 2.Bd5#
      • 1...Sh7
        • 2.Bd5#
      • 1...Se8
        • 2.Bd5#
      • 1...Sg8
        • 2.Bd5#
      • 1...d3
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::QAR2(A),XP(a)
    • P(c);OGATEB::QAR(A)
  • Tries
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAB1(A)
      • Refutation
        • P(a);
  • Actual
    • S(I);
    • Vars
      • K(d);CHECK,P-FLIGHT::R(C)+B(D)
      • B(b);N_GUARD,P_SPINB(b),XP(G)::QAR2(A),XP(a)
      • S(f);N_GUARD,P_SPINS(f),XP(G)::B(D)
      • B(b);N_GUARD::QAR2(A),XP(a)
      • S(f);N_GUARD::B(D),XS(f)
      • S(f);N_GUARD::B(D)
      • P(c);OGATEB::QAR(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).