MESON Chess Problem Database

Problem Display
PID: 265339 (1Q6/3Pp3/1PBPP1K1/Rn1Nk2p/1PP1nN2/6P1/3R4/2B4b w - - 0 1)

Tinebra, Vincenzo

The Problemist, 1994

1Q6/3Pp3/1PBPP1K1/Rn1Nk2p/1PP1nN2/6P1/3R4/2B4b

#2

15 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3+?
      • 1...Kxe6
        • 2.S5f4#
        • 2.d8S#
      • 1...Kd4!
    • 1.Sc3?
      • threat
        • 2.Rd5#
      • 1...Sxc3
        • 2.Qh8#
        • 2.dxe7#
      • 1...Sxg3
        • 2.dxe7#
      • 1...Sxd6
        • 2.Qh8#
      • 1...Sf2
        • 2.Qh8#
        • 2.dxe7#
      • 1...Sc5
        • 2.Qh8#
      • 1...Sg5
        • 2.Qh8#
        • 2.dxe7#
      • 1...Sf6
        • 2.dxe7#
      • 1...Sxd2!
    • 1.Sf6?
      • threat
        • 2.Rd5#
      • 1...Sxd2
        • 2.Bb2#
      • 1...Sxg3
        • 2.dxe7#
      • 1...Sxd6
        • 2.Bb2#
      • 1...Sxf6
        • 2.Bb2#
        • 2.dxe7#
      • 1...Sf2
        • 2.Bb2#
        • 2.dxe7#
      • 1...Sc3
        • 2.dxe7#
      • 1...Sg5
        • 2.Bb2#
        • 2.dxe7#
      • 1...Sc5!
    • 1.Sxe7?
      • threat
        • 2.Rd5#
      • 1...Sxd2
        • 2.Bb2#
      • 1...Sxd6
        • 2.Bb2#
        • 2.Qxd6#
        • 2.Qh8#
      • 1...Sf2
        • 2.Bb2#
        • 2.Qh8#
      • 1...Sc3
        • 2.Qh8#
      • 1...Sc5
        • 2.Qh8#
      • 1...Sg5
        • 2.Bb2#
        • 2.Qh8#
      • 1...Sf6
        • 2.Bb2#
      • 1...Sxg3!
  • Keys
    • 1.Se3!
      • threat
        • 2.Rd5#
      • 1...Sxd2
        • 2.Bb2#
      • 1...Sxg3
        • 2.dxe7#
      • 1...Sxd6
        • 2.Bb2#
        • 2.Qh8#
      • 1...Sf2
        • 2.Bb2#
        • 2.Qh8#
        • 2.dxe7#
      • 1...Sc3
        • 2.Qh8#
        • 2.dxe7#
      • 1...Sc5
        • 2.Qh8#
      • 1...Sg5
        • 2.Bb2#
        • 2.Qh8#
        • 2.dxe7#
      • 1...Sf6
        • 2.Bb2#
        • 2.dxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • S(H);P_PINS(c)
      • Threat
        • R1(B)
      • Vars
        • S(b);N_GUARD,XP(C)::QAB(O)+P(K),XP(f)
        • S(b);N_GUARD,XP(K)::QAB(O)
        • S(b);N_GUARD,N_SPINS(c)::QAB(O)
        • S(b);N_GUARD::QAB(O)+P(K),XP(f)
      • Refutation
        • S(b);XR(B)
    • Try
      • S(H);P_PINS(c)
      • Threat
        • R1(B)
      • Vars
        • S(b);N_GUARD,XR(B)::B(A)
        • S(b);N_GUARD,XP(C)::QAB(O)+P(K),XP(f)
        • S(b);N_GUARD,XP(K)::B(A)
        • S(b);N_GUARD::QAB(O)+P(K),XP(f)
      • Refutation
        • S(b);N_SPINS(c)
    • Try
      • S(H);P_PINS(c),XP(f)
      • Threat
        • R1(B)
      • Vars
        • S(b);N_GUARD,XR(B)::B(A)
        • S(b);N_GUARD::QAB(O)
        • S(b);N_GUARD,N_SPINS(c)::QAB(O)
        • S(b);N_GUARD::B(A)
      • Refutation
        • S(b);XP(C)
  • Actual
    • S(H);P_PINS(c)
    • Threat
      • R1(B)
    • Vars
      • S(b);N_GUARD,XR(B)::B(A)
      • S(b);N_GUARD,XP(C)::QAB(O)+P(K),XP(f)
      • S(b);N_GUARD,N_SPINS(c)::QAB(O)
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