MESON Chess Problem Database

Problem Display
PID: 51343 (3N4/2B5/2Bp1PRb/1p2kp2/1N1n1p2/K2Q3r/bPp1p3/8 w - - 0 1)

Luke, R

Manchester Guardian, 1958

3N4/2B5/2Bp1PRb/1p2kp2/1N1n1p2/K2Q3r/bPp1p3/8

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd3+
      • 2.Sxd3#
    • 1...Sb3
      • 2.Bxd6#
      • 2.Qd5#
      • 2.Qxd6#
    • 1...Sf3
      • 2.Bxd6#
      • 2.Qxd6#
    • 1...Sxc6
      • 2.Sbxc6#
      • 2.Bxd6#
    • 1...Se6
      • 2.Sf7#
      • 2.Bxd6#
  • Tries
    • 1.Qe3+?
      • 1...fxe3
        • 2.Sd3#
      • 1...Rxe3+!
  • Keys
    • 1.Bb6!
      • threat
        • 2.Bxd4#
      • 1...Rxd3+
        • 2.Sxd3#
      • 1...Sxc6
        • 2.Sbxc6#
      • 1...f3
        • 2.Qxd4#
      • 1...d5
        • 2.Bc7#
      • 1...Sb3
        • 2.Qd5#
      • 1...Sf3
        • 2.Qxe2#
      • 1...Se6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(d);CHECK,XQ(C)::S(D),XR(d)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • P(f);XQ(C)::S(D)
      • Refutation
        • R(d);CHECK,XQ(C)
  • Actual
    • B(H);N_PINP(j)
    • Threat
      • B(H),XS(e)
    • Vars
      • R(d);CHECK,XQ(C)::S(D),XR(d)
      • S(e);XB(E)::S(D),XS(e)
      • P(f);N_PINQ(C)::QAB1(C),XS(e)
      • P(j);OGATEB::B(H)
      • S(e);N_PINQ(C)::QAR1(C)
      • S(e);N_PINQ(C)::QAR(C),XP(c)
      • S(e);SBLOCK,S_CUTB(a)::S(I)
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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).