MESON Chess Problem Database

Problem Display
PID: 138026 (Q7/4p3/4p3/1K2kp1B/4NN1P/4p3/4R3/4B3 w - - 0 1)

Carraro, Andrea

5th Comm., Brogi MT (Sinfonie Scacchistiche), 1976-1977

Q7/4p3/4p3/1K2kp1B/4NN1P/4p3/4R3/4B3

#2

8 + 5

14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Bc3#
    • 1...Kxf4
      • 2.Bg3#
  • Tries
    • 1.Kb4?
      • 1...Kd4
        • 2.Bc3#
      • 1...Kxf4
        • 2.Bg3#
      • 1...fxe4!
    • 1.Kc4?
      • threat
        • 2.Sd3#
        • 2.Sg6#
      • 1...Kxf4
        • 2.Bg3#
      • 1...fxe4!
    • 1.Kc5?
      • threat
        • 2.Sd3#
        • 2.Sg6#
      • 1...Kxf4
        • 2.Bg3#
      • 1...fxe4!
    • 1.Sf2?
      • 1...Kd4
        • 2.Qa1#
      • 1...Kxf4
        • 2.Sd3#
      • 1...Kf6
        • 2.Qh8#
      • 1...Kd6!
    • 1.Qd5+?
      • 1...Kxf4
        • 2.Bg3#
      • 1...exd5!
    • 1.Qc6?
      • 1...Kd4
        • 2.Bc3#
      • 1...Kxf4
        • 2.Bg3#
      • 1...fxe4!
    • 1.Qb7?
      • 1...Kd4
        • 2.Bc3#
      • 1...Kxf4
        • 2.Bg3#
      • 1...fxe4!
    • 1.Qa4?
      • 1...Kxf4
        • 2.Bg3#
      • 1...fxe4!
  • Keys
    • 1.Sc5!
      • 1...Kd4
        • 2.Qa1#
      • 1...Kxf4
        • 2.Sd3#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kf6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(A)
    • K(b);OGATEB,S_FLIGHT,XS(D)::B(A)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(A)
        • K(b);OGATEB,S_FLIGHT,XS(D)::B(A)
      • Refutation
        • P(c);XS(C)
    • Try
      • K(F);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(D)::B(A)
      • Refutation
        • P(c);XS(C)
    • Try
      • K(F);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(D)::B(A)
      • Refutation
        • P(c);XS(C)
    • Try
      • S(C);P_PINP(a)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB(H)
        • K(b);N_SPINP(a),S_FLIGHT,XS(D)::S(C)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(D)::B(A)
      • Refutation
        • P(d);XQ(H)
    • Try
      • Q(H);
      • Vars
        • K(b);S_FLIGHT::B(A)
        • K(b);OGATEB,S_FLIGHT,XS(D)::B(A)
      • Refutation
        • P(c);XS(C)
    • Try
      • Q(H);
      • Vars
        • K(b);S_FLIGHT::B(A)
        • K(b);OGATEB,S_FLIGHT,XS(D)::B(A)
      • Refutation
        • P(c);XS(C)
    • Try
      • Q(H);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(D)::B(A)
      • Refutation
        • P(c);XS(C)
  • Actual
    • S(C);P_PINP(a)
    • Vars
      • K(b);N_SPINP(a),S_FLIGHT::QAB(H)
      • K(b);N_SPINP(a),S_FLIGHT,XS(D)::S(C)
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