MESON Chess Problem Database

Problem Display
PID: 175044 (1R1bNBB1/4r3/2p2p2/2k1nQp1/2P3p1/4K1Np/8/2R3nb w - - 0 1)

Kennard, Walter Irving

Philadelphia Times, 1901

1R1bNBB1/4r3/2p2p2/2k1nQp1/2P3p1/4K1Np/8/2R3nb

#2

9 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sxe4#
    • 1...Ba5
      • 2.Bxe7#
    • 1...Bb6
      • 2.Bxe7#
    • 1...Sf3
      • 2.Se4#
  • Tries
    • 1.Qxe5+?
      • 1...Bd5
        • 2.Se4#
        • 2.cxd5#
      • 1...fxe5!
  • Keys
    • 1.Qf2!
      • threat
        • 2.Kd2#
      • 1...Sd3+
        • 2.Kxd3#
      • 1...Sef3+
        • 2.Se4#
      • 1...Sxc4+
        • 2.Kd3#
      • 1...Bb6
        • 2.Bxe7#
      • 1...Ba5
        • 2.Bxe7#
      • 1...Se2
        • 2.Kxe2#
      • 1...Sgf3
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD::S(C),XB(b)
    • B(k);N_GUARD::B(H),XR(j)
    • S(a);S_CUTB(b)::S(C)
  • Tries
    • Try
      • Q(E);CHECK,P_SPINQ(E),XS(f)
      • Refutation
        • P(i);XQ(E)
  • Actual
    • Q(E);N_PINS(f)
    • Threat
      • QAB(E)+K(B)
    • Vars
      • S(f);CHECK::QAB(E)+K(B),XS(f)
      • S(f);CHECK,S_CUTB(b)::S(C)
      • S(f);CHECK,P_SPINS(f),XP(D)::QAB(E)+K(B)
      • B(k);N_GUARD::B(H),XR(j)
      • S(a);::QAB(E)+K(B),XS(a)
      • S(a);S_CUTB(b)::S(C)
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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).