MESON Chess Problem Database

Problem Display
PID: 154951 (8/6K1/8/3P1k2/3P3P/4pPP1/2b1B2n/4Q3 w - - 0 1)

Grabowski, Kazimierz

Good Companions (May Meredith Ty.), 1916

8/6K1/8/3P1k2/3P3P/4pPP1/2b1B2n/4Q3

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qxb1#
    • 1...Bd1
      • 2.Bd3#
    • 1...Bb3
      • 2.Bd3#
    • 1...Bd3
      • 2.Bxd3#
    • 1...Ba4
      • 2.Bd3#
  • Tries
    • 1.Bb5?
      • threat
        • 2.Bd7#
      • 1...Ba4
        • 2.Bd3#
      • 1...Sxf3!
    • 1.Ba6?
      • threat
        • 2.Bc8#
      • 1...Ba4
        • 2.Bd3#
      • 1...Sxf3!
    • 1.Qc3?
      • threat
        • 2.Qxc2#
        • 2.Qc8#
      • 1...Be4
        • 2.Qc8#
      • 1...Bb1
        • 2.Qc8#
      • 1...Bd1
        • 2.Bd3#
        • 2.Qd3#
        • 2.Qc8#
      • 1...Bb3
        • 2.Bd3#
        • 2.Qd3#
        • 2.Qc8#
      • 1...Bd3
        • 2.Bxd3#
        • 2.Qxd3#
        • 2.Qc8#
      • 1...Ba4
        • 2.Bd3#
        • 2.Qd3#
      • 1...Sxf3!
    • 1.Qc1?
      • threat
        • 2.Qxc2#
      • 1...Be4
        • 2.Qc8#
      • 1...Bb1
        • 2.Qxb1#
        • 2.Qc8#
      • 1...Bd1
        • 2.Bd3#
        • 2.Qc8#
      • 1...Bb3
        • 2.Bd3#
        • 2.Qc8#
      • 1...Bd3
        • 2.Bxd3#
        • 2.Qc8#
      • 1...Ba4
        • 2.Bd3#
      • 1...Sxf3!
  • Keys
    • 1.Qh1!
      • 1...Sxf3
        • 2.Qxf3#
      • 1...Be4
        • 2.fxe4#
      • 1...Bb1
        • 2.Qxb1#
      • 1...Bd1
        • 2.Bd3#
      • 1...Bb3
        • 2.Bd3#
      • 1...Bd3
        • 2.Bxd3#
      • 1...Ba4
        • 2.Bd3#
      • 1...Sf1
        • 2.Qh3#
      • 1...Sg4
        • 2.fxg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATEB::QAB(A),XB(a)
    • B(a);N_GUARD::B(B)
    • B(a);N_GUARD::B(B),XB(a)
  • Tries
    • Try
      • B(B);
      • Threat
        • B(B)
      • Vars
        • B(a);N_GUARD::B(B)
      • Refutation
        • S(b);XP(C)
    • Try
      • B(B);
      • Threat
        • B(B)
      • Vars
        • B(a);N_GUARD::B(B)
      • Refutation
        • S(b);XP(C)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAB(A)
      • Refutation
        • S(b);XP(C)
    • Try
      • Q(A);
      • Threat
        • QAB(A),XB(a)
      • Vars
        • B(a);OGATE::QAB(A)
        • B(a);N_GUARD::B(B)
      • Refutation
        • S(b);XP(C)
  • Actual
    • Q(A);
    • Vars
      • S(b);OGATE,XP(C)::QAR2(A),XS(b)
      • B(a);OGATE::P(C),XB(a)
      • B(a);OGATEB::QAB(A),XB(a)
      • B(a);N_GUARD::B(B)
      • B(a);N_GUARD::B(B),XB(a)
      • S(b);OGATE::QAB(A)
      • S(b);OGATE::P(C),XS(b)
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