MESON Chess Problem Database

Problem Display
PID: 101145 (bQ6/8/7p/4Nn1R/2P1k3/1N4b1/K7/2B5 w - - 0 1)

Nield, Joshua

Good Companions (February Meredith Ty.), 1917

bQ6/8/7p/4Nn1R/2P1k3/1N4b1/K7/2B5

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Sc5#
    • 1...Sh4
      • 2.Qxa8#
    • 1...Sg7
      • 2.Qxa8#
  • Tries
    • 1.Qb7+?
      • 1...Kxe5
        • 2.Qe7#
      • 1...Bxb7!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qxf5#
      • 1...Kxe5
        • 2.Qe7#
      • 1...Se3
        • 2.Qf3#
      • 1...Sd4
        • 2.Sc5#
      • 1...Sh4
        • 2.Qxa8#
      • 1...Sd6
        • 2.Qf3#
      • 1...Se7
        • 2.Qf3#
      • 1...Sg7
        • 2.Qf3#
        • 2.Qxa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(c);SBLOCK::S(C)
    • S(c);::QAB(G),XB(e)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);OGATEB,P-FLIGHT,P_SPINS(c),XS(E)::QAR2(G)
      • Refutation
        • B(e);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G),XS(c)
    • Vars
      • K(b);OGATEB,P-FLIGHT,P_SPINS(c),XS(E)::QAR2(G)
      • S(c);OGATE::QAB1(G)
      • S(c);SBLOCK::S(C)
      • S(c);::QAB(G),XB(e)
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Developed and maintained by Brian Stephenson.
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