MESON Chess Problem Database

Problem Display
PID: 72251 (2Q5/1p3N2/1P6/4P3/4k1PK/3bp1P1/B7/3R4 w - - 0 1)

Fermie, W

Tijdschrift vd NSB, 1931

2Q5/1p3N2/1P6/4P3/4k1PK/3bp1P1/B7/3R4

#2

9 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qc4#
    • 1...Bb1
      • 2.Bd5#
      • 2.Qf5#
      • 2.Qxb7#
    • 1...Bf1
      • 2.Bd5#
      • 2.Qf5#
      • 2.Qxb7#
    • 1...Bc2
      • 2.Bd5#
      • 2.Qf5#
      • 2.Qxb7#
    • 1...Be2
      • 2.Bd5#
      • 2.Qf5#
      • 2.Qxb7#
    • 1...Bc4
      • 2.Qf5#
    • 1...Bb5
      • 2.Bd5#
      • 2.Qf5#
    • 1...Ba6
      • 2.Bd5#
      • 2.Qf5#
  • Tries
    • 1.Bd5+?
      • 1...Kd4
        • 2.Qc4#
      • 1...Kxd5!
    • 1.Qd7?
      • threat
        • 2.Qd5#
      • 1...e2
        • 2.Qxd3#
      • 1...Bc4
        • 2.Qf5#
      • 1...Kf3!
    • 1.Qc3?
      • threat
        • 2.Sg5#
      • 1...e2
        • 2.Qxd3#
      • 1...Kf3!
    • 1.Qc5?
      • threat
        • 2.Sg5#
        • 2.Bd5#
        • 2.Qd5#
      • 1...Bc4
        • 2.Sg5#
      • 1...e2
        • 2.Sg5#
        • 2.Bd5#
      • 1...Kf3!
    • 1.Qc6+?
      • 1...Kd4
        • 2.Qc4#
      • 1...bxc6!
  • Keys
    • 1.Qc2!
      • 1...Kf3
        • 2.Sg5#
      • 1...Kd4
        • 2.Qc4#
      • 1...Bxc2
        • 2.Bd5#
      • 1...e2
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT,P_SPINB(a)::QAR1(I)
    • B(a);::QAB1(I)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINB(a)::QAR1(I)
      • Refutation
        • K(c);P_SPINB(a),S_FLIGHT,XB(B)
    • Try
      • Q(I);
      • Threat
        • QAB1(I)
      • Vars
        • P(b);::QAB1(I),XB(a)
        • B(a);::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);
      • Threat
        • S(H)
      • Vars
        • P(b);::QAB1(I),XB(a)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);
      • Threat
        • DUALS(3)
      • Vars
        • B(a);::S(H)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINB(a)::QAR1(I)
      • Refutation
        • P(d);XQ(I)
  • Actual
    • Q(I);P_PINB(a)
    • Vars
      • K(c);N_SPINB(a),S_FLIGHT::S(H)
      • K(c);P-FLIGHT::QAR1(I)
      • B(a);N_SPINB(a),XQ(I)::B(B)
      • P(b);::QAB1(I),XB(a)
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