MESON Chess Problem Database

Problem Display
PID: 29050 (1B2B3/8/K4P2/RN3kP1/3n1PNQ/8/4npp1/3bRqb1 w - - 0 1)

Stocchi, Ottavio

2/4 Prize, Match: Germany - Italy, 1938

1B2B3/8/K4P2/RN3kP1/3n1PNQ/8/4npp1/3bRqb1

#2

11 + 8

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Sxd4#
    • 1...Sc1
      • 2.Sh6#
    • 1...Sc3
      • 2.Sh6#
    • 1...Sg3
      • 2.Sh6#
    • 1...Sxf4
      • 2.Sh6#
      • 2.Re5#
  • Tries
    • 1.Sh6+?
      • 1...Ke6
        • 2.Sxd4#
      • 1...Ke4!
    • 1.Sc3+?
      • 1...Ke6
        • 2.Re5#
      • 1...Sb5!
    • 1.Sd6+?
      • 1...Ke6
        • 2.Re5#
      • 1...Kxf4!
    • 1.Qh7+?
      • 1...Ke6
        • 2.Sxd4#
        • 2.Qe4#
        • 2.Qd7#
      • 1...Kxg4!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Sxf2#
      • 1...Ke4
        • 2.Sc3#
      • 1...Ke6
        • 2.Sxd4#
      • 1...Sxf4
        • 2.Re5#
      • 1...fxe1Q
        • 2.Sf2#
      • 1...fxe1S
        • 2.Sf2#
      • 1...fxe1B
        • 2.Sf2#
      • 1...fxe1R
        • 2.Sf2#
      • 1...Sc1
        • 2.Sh6#
      • 1...Sc3
        • 2.Sh6#
      • 1...Sg3
        • 2.Sh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(h);P_SPINS(d),S_FLIGHT::S(F),XS(g)
    • S(d);P_PINS(F)::S(C)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(h);P_SPINS(d),S_FLIGHT::S(F),XS(g)
      • Refutation
        • K(h);P_SPINS(d),S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(h);P_SPINS(d),S_FLIGHT::R1(E)
      • Refutation
        • S(g);P_SPINS(g)
    • Try
      • S(F);CHECK
      • Vars
        • K(h);P_SPINS(d),S_FLIGHT::R1(E)
      • Refutation
        • K(h);P-FLIGHT,XP(B)
    • Try
      • Q(D);CHECK
      • Refutation
        • K(h);S_FLIGHT,XS(C)
  • Actual
    • Q(D);
    • Threat
      • QAB(D)+S(C),XP(e)
    • Vars
      • K(h);P_SPINS(d),S_FLIGHT::S(F)
      • K(h);P_SPINS(d),S_FLIGHT::S(F),XS(g)
      • S(d);OGATE,P_PINS(F),SBLOCK,XP(B)::R1(A)
      • P(e);XR(A)::QAB(D)+S(C)
      • S(d);P_PINS(F)::QAB(D)+S(C),DCHECK
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