MESON Chess Problem Database

Problem Display
PID: 110076 (bBQ2N2/8/8/1P1k4/4q3/2P4K/7p/6bB w - - 0 1)

Wash, Benjamin S

Fanfulla da Lodi, 1886-1888

bBQ2N2/8/8/1P1k4/4q3/2P4K/7p/6bB

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2+
      • 2.Bxg2#
    • 1...Qf3+
      • 2.Bxf3#
    • 1...Bd4
      • 2.c4#
    • 1...Bc5
      • 2.Qe6#
    • 1...Bc6
      • 2.Qxc6#
  • Tries
    • 1.Sg6?
      • threat
        • 2.Sf4#
        • 2.Se7#
      • 1...Qg2+
        • 2.Bxg2#
      • 1...Qf3+
        • 2.Bxf3#
      • 1...Bc5
        • 2.Qg8#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Be3
        • 2.Se7#
      • 1...Qxh1!
  • Keys
    • 1.Sh7!
      • threat
        • 2.Sf6#
      • 1...Qg2+
        • 2.Bxg2#
      • 1...Qf3+
        • 2.Bxf3#
      • 1...Bc5
        • 2.Qg8#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bd4
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(c);CHECK,OGATEB::B(A),XQ(c)
    • B(a);SBLOCK::P(B)
    • B(a);SBLOCK::QAB1(F)
    • B(e);N_GUARD::QAB1(F),XB(e)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);CHECK,OGATEB::B(A),XQ(c)
        • B(a);SBLOCK::QAB(F)
        • B(e);N_GUARD::QAB1(F),XB(e)
        • B(a);::S(G)
      • Refutation
        • Q(c);N_SPINQ(c),XB(A)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • Q(c);CHECK,OGATEB::B(A),XQ(c)
      • B(a);SBLOCK::QAB(F)
      • B(e);N_GUARD::QAB1(F),XB(e)
      • B(a);SBLOCK::P(B)
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