MESON Chess Problem Database

Problem Display
PID: 64934 (3R4/b1B2P2/3N1pK1/1P1N4/1p1kn1R1/1Bp1pP2/4P3/1b1r4 w - - 0 1)

Bottacchi, Antonio

2nd Prize, L'Italia Scacchistica, 1917

3R4/b1B2P2/3N1pK1/1P1N4/1p1kn1R1/1Bp1pP2/4P3/1b1r4

#2

11 + 9

56 The Problemist 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Sf5#
  • Tries
    • 1.Sxb4?
      • threat
        • 2.Sxe4#
        • 2.Sb7#
      • 1...Ke5
        • 2.Sc6#
      • 1...c2
        • 2.Sxe4#
      • 1...Bc5
        • 2.Sc6#
        • 2.Sf5#
      • 1...Kc5!
    • 1.Se7?
      • threat
        • 2.Sxe4#
        • 2.Sb7#
      • 1...Ke5
        • 2.Sc6#
      • 1...c2
        • 2.Sxe4#
      • 1...Bc5
        • 2.Sdf5#
        • 2.Sc6#
      • 1...Kc5!
    • 1.Sb7?
      • threat
        • 2.Sxb4#
        • 2.Sb6#
        • 2.Sxf6#
        • 2.Se7#
      • 1...Bb6
        • 2.Sxb4#
        • 2.Sxb6#
        • 2.Sxf6#
        • 2.Se7#
      • 1...c2
        • 2.Rxe4#
      • 1...f5
        • 2.Sxb4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Se7#
      • 1...Bc5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sxe4#
      • 1...Sd2+
        • 2.Se4#
      • 1...Sf2+
        • 2.Se4#
      • 1...Sg3+
        • 2.Se4#
      • 1...Sc5+
        • 2.Sf5#
      • 1...Sg5+
        • 2.Se4#
      • 1...Sxd6+
        • 2.Sd3#
      • 1...Kc5
        • 2.Se6#
      • 1...Ke5
        • 2.Sc4#
      • 1...Bc5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(i);SBLOCK::S(G)
  • Tries
    • Try
      • S(F);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • K(f);N_SPINS(g),S_FLIGHT::S(F)
        • P(c);::R(K)+S(G),XS(g)
      • Refutation
        • K(f);N_SPINS(g),S_FLIGHT
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(f);N_SPINS(g),S_FLIGHT::S(F)
        • P(c);::R(K)+S(G),XS(g)
      • Refutation
        • K(f);N_SPINS(g),S_FLIGHT
    • Try
      • S(G);
      • Threat
        • DUALS(4)
      • Vars
        • P(c);S_CUTB(a)::R1(D),XS(g)
      • Refutation
        • B(i);
  • Actual
    • S(F);N_PINS(g)
    • Threat
      • R(K)+S(G),XS(g)
    • Vars
      • S(g);CHECK::R(K)+S(G)
      • S(g);CHECK,SBLOCK::R(K)+S(G),DCHECK
      • S(g);CHECK,P_SPINS(g),XS(G)::R(D)+S(F)
      • K(f);S_FLIGHT::S(F)
      • K(f);S_FLIGHT::B(I)+S(G),DCHECK
      • B(i);SBLOCK::R(K)+S(G),DCHECK
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