MESON Chess Problem Database

Problem Display
PID: 67427 (1b6/6Q1/2n1p1nK/2p1P2N/3pkpp1/1P1RN3/2B5/1r3RBb w - - 0 1)

Stocchi, Ottavio

4th Prize, Schach, 1954

1b6/6Q1/2n1p1nK/2p1P2N/3pkpp1/1P1RN3/2B5/1r3RBb

#2

10 + 11

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5
      • 2.Qxg6#
    • 1...Scxe5
      • 2.Sf6#
    • 1...Sh4
      • 2.Rxf4#
    • 1...Sgxe5
      • 2.Sf6#
      • 2.Rxf4#
    • 1...Se7
      • 2.Rxf4#
    • 1...Sf8
      • 2.Rxf4#
    • 1...Sh8
      • 2.Rxf4#
    • 1...dxe3
      • 2.Rdd1#
      • 2.Rd2#
      • 2.Rd6#
      • 2.Rd7#
      • 2.Rd8#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Rxd4#
      • 1...Kd5
        • 2.Sf6#
      • 1...Kf5
        • 2.Sg3#
        • 2.Qxg6#
      • 1...Rxf1!
    • 1.Sxg4?
      • threat
        • 2.Rxd4#
      • 1...Kd5
        • 2.Shf6#
      • 1...Kf5
        • 2.Qxg6#
      • 1...Rxf1!
  • Keys
    • 1.Sd1!
      • threat
        • 2.Rxd4#
      • 1...Kd5
        • 2.Sc3#
      • 1...Kf5
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(k);SBLOCK,XP(G)::QAB(J),XS(j)
    • S(h);SBLOCK,XP(G)::S(H)
    • S(j);N_GUARD::R1(A),XP(e)
  • Tries
    • Try
      • S(F);
      • Threat
        • B(C)+R(E),DCHECK,XP(c)
      • Vars
        • K(d);P_SPINP(c),S_FLIGHT::S(H)
      • Refutation
        • R(a);XR(A)
    • Try
      • S(F);XP(f)
      • Threat
        • B(C)+R(E),DCHECK,XP(c)
      • Vars
        • K(d);P_SPINP(c),S_FLIGHT::S(H)
        • K(d);P_SPINP(e),S_FLIGHT::QAB1(J),XS(j)
      • Refutation
        • R(a);XR(A)
  • Actual
    • S(F);
    • Threat
      • B(C)+R(E),DCHECK,XP(c)
    • Vars
      • K(d);P_SPINP(c),S_FLIGHT::S(F)
      • K(d);P_SPINP(e),S_FLIGHT::S(H)
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