MESON Chess Problem Database

Problem Display
PID: 139914 (bKBR4/8/1pk5/1p1n4/1p2n3/1N6/6R1/6Q1 w - - 0 1)

Fiocati, Francisco

La Strategie, 1925

bKBR4/8/1pk5/1p1n4/1p2n3/1N6/6R1/6Q1

#2

6 + 7

56 The Problemist 1938
5454 Near Snap 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Bb7
      • 2.Bxb7#
    • 1...Sc5
      • 2.Sd4#
    • 1...Sd6
      • 2.Bd7#
  • Tries
    • 1.Qc5+?
      • 1...Sxc5
        • 2.Sd4#
      • 1...bxc5!
    • 1.Qa1?
      • threat
        • 2.Qxa8#
      • 1...Bb7
        • 2.Bxb7#
      • 1...Sc5
        • 2.Sd4#
      • 1...Sd6
        • 2.Bd7#
      • 1...Sc7!
  • Keys
    • 1.Qh1!
      • 1...Sd2
        • 2.Rg6#
      • 1...Bb7
        • 2.Bxb7#
      • 1...Sf2
        • 2.Rg6#
      • 1...Sec3
        • 2.Rg6#
      • 1...Sg3
        • 2.Rc2#
      • 1...Sc5
        • 2.Sd4#
      • 1...Sg5
        • 2.Rc2#
      • 1...Sd6
        • 2.Bd7#
      • 1...Sef6
        • 2.Rc2#
      • 1...Sdc3
        • 2.Rg6#
      • 1...Se3
        • 2.Rg6#
      • 1...Sf4
        • 2.Rc2#
      • 1...Sdf6
        • 2.Rc2#
      • 1...Sc7
        • 2.Rc2#
      • 1...Se7
        • 2.Rc2#

Anticipated by 139913(1897)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • B(g);N_GUARD::B(E),XB(g)
    • S(b);SBLOCK::S(C)
    • S(b);SBLOCK::B(E)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • S(b);SBLOCK,XQ(A)::S(C)
      • Refutation
        • P(e);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAB(A),XB(g)
      • Vars
        • B(g);N_GUARD::B(E),XB(g)
        • S(b);SBLOCK::S(C)
        • S(b);SBLOCK::B(E)
      • Refutation
        • S(d);
  • Actual
    • Q(A);
    • Vars
      • S(b);N_GUARD,S_CUTS(d)::R(B)
      • B(g);N_GUARD::B(E),XB(g)
      • S(b);SBLOCK::S(C)
      • S(b);SBLOCK::B(E)
      • S(d);N_GUARD,S_CUTS(b),S_CUTS(b)::R(B)
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Developed and maintained by Brian Stephenson.
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