MESON Chess Problem Database

Problem Display
PID: 34434 (1n6/rP3KR1/1Bpk4/2NpNP2/2qr1p1n/3p4/8/b3R3 w - - 0 1)

Stocchi, Ottavio

2nd HM., Suomen Tehtavaniekat TT, 1950

1n6/rP3KR1/1Bpk4/2NpNP2/2qr1p1n/3p4/8/b3R3

#2

8 + 11

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb7+
      • 2.Sxb7#
    • 1...Sg2
      • 2.Rg6#
    • 1...Sf3
      • 2.Rg6#
    • 1...Sxf5
      • 2.Rg6#
    • 1...Sg6
      • 2.Rxg6#
  • Tries
    • 1.Kf6?
      • threat
        • 2.Sf7#
      • 1...Sd7+
        • 2.Rxd7#
      • 1...Qxc5
        • 2.Bc7#
      • 1...Rxb7
        • 2.Sxb7#
      • 1...Re4!
    • 1.Ke8?
      • threat
        • 2.Sf7#
      • 1...Rxb7
        • 2.Sxb7#
      • 1...Re4!
    • 1.Kg8?
      • threat
        • 2.Sf7#
      • 1...Qxc5
        • 2.Bc7#
      • 1...Rxb7
        • 2.Sxb7#
      • 1...Re4!
    • 1.Sxc4+?
      • 1...Rxc4
        • 2.Re6#
      • 1...dxc4!
  • Keys
    • 1.Kf8!
      • threat
        • 2.Sf7#
      • 1...Sg6+
        • 2.Rxg6#
      • 1...Sd7+
        • 2.Rxd7#
      • 1...Qxc5
        • 2.Bc7#
      • 1...Rxb7
        • 2.Sxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(j);CHECK,XP(F)::S(B),XR(j)
    • S(f);N_GUARD::R(H)
    • S(f);N_GUARD,XP(D)::R(H)
    • S(f);N_GUARD::R(H),XS(f)
  • Tries
    • Try
      • K(G);N_SPINP(F),P-FLIGHT
      • Threat
        • S(C)
      • Vars
        • S(k);CHECK,N_GUARD::R1(H),XS(k)
        • Q(c);SBLOCK,XS(B)::B(E)
        • R(j);XP(F)::S(B),XR(j)
      • Refutation
        • R(d);P_PINS(C)
    • Try
      • K(G);N_SPINP(F),S_FLIGHT
      • Threat
        • S(C)
      • Vars
        • R(j);XP(F)::S(B),XR(j)
      • Refutation
        • R(d);P_PINS(C)
    • Try
      • K(G);N_SPINP(F),S_FLIGHT
      • Threat
        • S(C)
      • Vars
        • Q(c);SBLOCK,XS(B)::B(E)
        • R(j);XP(F)::S(B),XR(j)
      • Refutation
        • R(d);
    • Try
      • S(C);CHECK,XQ(c)
      • Vars
        • R(d);XS(C)::R1(A)
      • Refutation
        • P(g);XS(C)
  • Actual
    • K(G);N_SPINP(F),P-FLIGHT
    • Threat
      • S(C)
    • Vars
      • S(f);CHECK,N_GUARD::R(H),XS(f)
      • S(k);CHECK,N_GUARD::R1(H),XS(k)
      • Q(c);SBLOCK,XS(B)::B(E)
      • R(j);XP(F)::S(B),XR(j)
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