MESON Chess Problem Database

Problem Display
PID: 108612 (b5B1/b4NN1/4p3/8/1P1pkp2/Q4RnR/8/3K4 w - - 0 1)

Kennard, Walter Irving

Montreal Gazette, 1892

b5B1/b4NN1/4p3/8/1P1pkp2/Q4RnR/8/3K4

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Qxa8#
    • 1...Bb6
      • 2.Qxa8#
    • 1...Bb8
      • 2.Qxa8#
    • 1...Bd5
      • 2.Qd3#
    • 1...d3
      • 2.Qxd3#
    • 1...e5
      • 2.Sg5#
      • 2.Sd6#
  • Tries
    • 1.Rxf4+?
      • 1...Kxf4
        • 2.Rh4#
      • 1...Kd5!
  • Keys
    • 1.Qa6!
      • 1...Kxf3
        • 2.Qe2#
      • 1...Kd5
        • 2.Qxe6#
      • 1...d3
        • 2.Qxd3#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bc5
        • 2.Qxa8#
      • 1...Bb6
        • 2.Qxa8#
      • 1...Bb8
        • 2.Qxa8#
      • 1...Bd5
        • 2.Qd3#
      • 1...Bb7
        • 2.Qxb7#
      • 1...Sf1
        • 2.Qxe6#
      • 1...Sh1
        • 2.Qxe6#
      • 1...Se2
        • 2.Qxe6#
      • 1...Sf5
        • 2.Qxe6#
      • 1...Sh5
        • 2.Qxe6#
      • 1...e5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(f);OGATE::QAB(B),XB(g)
    • B(g);SBLOCK::QAB1(B)
    • P(b);::QAB1(B),XP(b)
  • Tries
    • Try
      • R(C);CHECK,XP(d)
      • Vars
        • K(c);P-FLIGHT,XR(C)::R(D)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(c);P_SPINS(a),S_FLIGHT,XR(C)::QAB1(B)
      • K(c);S_FLIGHT::QAB1(B),XP(e)
      • P(b);::QAB1(B),XP(b)
      • B(g);N_GUARD::QAB(B),XB(g)
      • B(f);OGATE::QAB(B),XB(g)
      • B(g);SBLOCK::QAB1(B)
      • S(a);::QAR2(B),XP(e)
      • P(e);SBLOCK::S(F)
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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).