MESON Chess Problem Database

Problem Display
PID: 179267 (8/8/2PQ1pK1/1B3P2/3bkB2/2p5/2n5/5R2 w - - 0 1)

Shire, David J

1st Prize, Problem Observer, 2010

8/8/2PQ1pK1/1B3P2/3bkB2/2p5/2n5/5R2

#2

7 + 5

136 Problem Observer 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Bd3#
      • 2.Qd3#
    • 1...Be3
      • 2.Bd3#
      • 2.Qd3#
    • 1...Bc5
      • 2.Bd3#
      • 2.Qd3#
    • 1...Be5
      • 2.Bd3#
      • 2.Qd3#
    • 1...Bb6
      • 2.Bd3#
      • 2.Qd3#
    • 1...Ba7
      • 2.Bd3#
      • 2.Qd3#
  • Tries
    • 1.Bc1?
      • threat
        • 2.Rf4#
      • 1...Be3
        • 2.Bd3#
      • 1...Be5
        • 2.Bd3#
        • 2.Qd3#
      • 1...Bf2!
  • Keys
    • 1.Be3!
      • 1...Kxe3
        • 2.Qf4#
      • 1...Bxe3
        • 2.Bd3#
      • 1...Sxe3
        • 2.Rf4#
      • 1...Sa1
        • 2.Qxd4#
      • 1...Bc5
        • 2.Qe6#
      • 1...Be5
        • 2.Qd3#
      • 1...Bb6
        • 2.Qe6#
      • 1...Ba7
        • 2.Qe6#
      • 1...Se1
        • 2.Qxd4#
      • 1...Sa3
        • 2.Qxd4#
      • 1...Sb4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Threat
        • R1(A)
      • Vars
        • B(c);::B(C)
      • Refutation
        • B(c);
  • Actual
    • B(B);
    • Vars
      • K(d);P-FLIGHT,XB(B)::QAB1(F)
      • B(c);SBLOCK,XB(B)::B(C)
      • S(a);SBLOCK,XB(B)::R1(A)
      • S(a);N_GUARD::QAR1(F),XB(c)
      • B(c);N_GUARD::QAR2(F)
      • B(c);OGATE,SBLOCK::QAB1(F)
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