MESON Chess Problem Database

Problem Display
PID: 41409 (8/8/8/Q5N1/1K2P3/4kb2/2Pp1R2/3R4 w - - 0 1)

Bonivento, Oscar

La Settimana Enigmistica, 1933

8/8/8/Q5N1/1K2P3/4kb2/2Pp1R2/3R4

#2

7 + 3

4436 Problemi Opera omnia 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qc5#
    • 1...Bxd1
      • 2.Qb6#
      • 2.Qc5#
      • 2.Qa7#
    • 1...Bh1
      • 2.Qb6#
      • 2.Qc5#
      • 2.Qa7#
    • 1...Be2
      • 2.Qb6#
      • 2.Qc5#
      • 2.Qa7#
    • 1...Bg2
      • 2.Qb6#
      • 2.Qc5#
      • 2.Qa7#
    • 1...Bxe4
      • 2.Qb6#
      • 2.Qc5#
      • 2.Qa7#
    • 1...Bg4
      • 2.Qb6#
      • 2.Qc5#
      • 2.Qa7#
    • 1...Bh5
      • 2.Qb6#
      • 2.Qc5#
      • 2.Qa7#
  • Tries
    • 1.Rxf3+?
      • 1...Kd4
        • 2.Rxd2#
        • 2.Rd3#
        • 2.Qa1#
        • 2.Qc5#
        • 2.Qd5#
        • 2.c3#
      • 1...Ke2!
    • 1.Qc7?
      • 1...Kd4
        • 2.Qc3#
        • 2.Qc5#
      • 1...Bxd1
        • 2.Qb6#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Bxe4
        • 2.Qb6#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Bh1
        • 2.Qb6#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Be2
        • 2.Qb6#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Bg2
        • 2.Qb6#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Bg4
        • 2.Qb6#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Bh5
        • 2.Qb6#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Kxf2!
    • 1.Qa3+?
      • 1...Kxf2
        • 2.Qxf3#
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4!
    • 1.Qe5?
      • 1...Bxd1
        • 2.Qc5#
      • 1...Bxe4
        • 2.Qc5#
      • 1...Bh1
        • 2.Qc5#
      • 1...Be2
        • 2.Qc5#
      • 1...Bg2
        • 2.Qc5#
      • 1...Bg4
        • 2.Qc5#
      • 1...Bh5
        • 2.Qc5#
      • 1...Kxf2!
  • Keys
    • 1.Qf5!
      • 1...Kxf2
        • 2.Qxf3#
      • 1...Kd4
        • 2.Qc5#
      • 1...Bxd1
        • 2.Qc5#
      • 1...Bxe4
        • 2.Qc5#
      • 1...Bh1
        • 2.Qc5#
      • 1...Be2
        • 2.Qc5#
      • 1...Bg2
        • 2.Qc5#
      • 1...Bg4
        • 2.Qc5#
      • 1...Bh5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINP(a),S_FLIGHT::QAB1(F)
  • Tries
    • Try
      • R(C);CHECK,XB(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(F);
      • Refutation
        • K(b);S_FLIGHT,XR(C)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XR(C)::QAR1(F),XB(c)
        • K(b);P_SPINP(a),S_FLIGHT::QAB1(F)
      • Refutation
        • K(b);P_SPINB(c),S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • B(c);XR(A)::QAB(F)
        • B(c);P_SPINB(c),XP(E)::QAB(F)
        • B(c);::QAB(F)
      • Refutation
        • K(b);S_FLIGHT,XR(C)
  • Actual
    • Q(F);
    • Vars
      • K(b);P_SPINB(c),S_FLIGHT,XR(C)::QAR1(F),XB(c)
      • K(b);P_SPINP(a),S_FLIGHT::QAB1(F)
      • B(c);XR(A)::QAB(F)
      • B(c);XP(E)::QAB(F)
      • B(c);::QAB(F)
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