MESON Chess Problem Database

Problem Display
PID: 25681 (8/8/7p/5K1p/R5nk/4pP2/5r1P/1n2BBNR w - - 0 1)

Stocchi, Ottavio

Citation, Tijdschrift vd NSB, 1930

8/8/7p/5K1p/R5nk/4pP2/5r1P/1n2BBNR

#2

8 + 7

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...e2
      • 2.Bxf2#
  • Tries
    • 1.Bc3?
      • threat
        • 2.Bf6#
      • 1...Rxf3+
        • 2.Sxf3#
      • 1...Rxh2
        • 2.Be1#
      • 1...Sxc3!
    • 1.Ba5?
      • threat
        • 2.Bd8#
      • 1...Rxf3+
        • 2.Sxf3#
      • 1...Rxh2
        • 2.Be1#
      • 1...Rd2!
  • Keys
    • 1.Bb4!
      • threat
        • 2.Be7#
      • 1...Rxf3+
        • 2.Sxf3#
      • 1...Rxh2
        • 2.Be1#
      • 1...Sxh2
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(c);N_GUARD::B(A),XR(b)
  • Tries
    • Try
      • B(A);N_PINR(b)
      • Threat
        • B(A)
      • Vars
        • R(b);CHECK,XP(F)::S(C),XR(b)
        • R(b);N_PINP(F),OGATEB,P_SPINR(b),XP(E)::B(A)
      • Refutation
        • S(a);XB(A)
    • Try
      • B(A);N_PINR(b)
      • Threat
        • B(A)
      • Vars
        • R(b);CHECK,XP(F)::S(C),XR(b)
        • R(b);N_PINP(F),OGATEB,P_SPINR(b),XP(E)::B(A)
      • Refutation
        • R(b);N_PINP(F)
  • Actual
    • B(A);N_PINR(b),N_PINS(d)
    • Threat
      • B(A)
    • Vars
      • R(b);CHECK,XP(F)::S(C),XR(b)
      • R(b);N_PINP(F),OGATEB,P_SPINR(b),XP(E)::B(A)
      • S(d);OGATEB,P_SPINS(d),XP(E)::R(G)+B(A)
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