MESON Chess Problem Database

Problem Display
PID: 1992 (4N3/3p4/p2B4/P2k1p1R/K2b4/3Qp3/4P3/8 w - - 0 1)

Abbott, Joseph William

Source?, 0000

4N3/3p4/p2B4/P2k1p1R/K2b4/3Qp3/4P3/8

#2

7 + 6

3479 121 Chess Problems 1887
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qc4#
      • 2.Qxf5#
      • 2.Qb3#
  • Tries
    • 1.Ka3?
      • 1...Ke6
        • 2.Qc4#
        • 2.Qxf5#
        • 2.Qb3#
      • 1...Kc6!
    • 1.Kb3?
      • 1...Ke6
        • 2.Qc4#
        • 2.Qxf5#
      • 1...Kc6!
    • 1.Kb4?
      • 1...Ke6
        • 2.Qc4#
        • 2.Qxf5#
        • 2.Qb3#
      • 1...Kc6!
    • 1.Rxf5+?
      • 1...Kc6
        • 2.Qe4#
      • 1...Ke6!
    • 1.Rg5?
      • 1...Ke6
        • 2.Qc4#
        • 2.Qxf5#
        • 2.Qb3#
      • 1...Kc6!
    • 1.Qc4+?
      • 1...Ke4
        • 2.Sf6#
      • 1...Kxc4!
    • 1.Qxf5+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Kc6
        • 2.Qe4#
        • 2.Qf3#
        • 2.Qd5#
      • 1...Be5!
    • 1.Qb3+?
      • 1...Ke4
        • 2.Qb7#
      • 1...Kc6!
  • Keys
    • 1.Qd1!
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kc6
        • 2.Qh1#
      • 1...Ke6
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Refutation
        • K(c);N_SPINB(b),N_SPINP(d),S_FLIGHT
    • Try
      • K(C);S_FLIGHT
      • Refutation
        • K(c);N_SPINB(b),N_SPINP(d),S_FLIGHT
    • Try
      • K(C);P-FLIGHT
      • Refutation
        • K(c);N_SPINB(b),N_SPINP(d),S_FLIGHT
    • Try
      • R(E);CHECK,XP(d)
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT::QAB(B)
      • Refutation
        • K(c);N_SPINB(b),S_FLIGHT
    • Try
      • R(E);
      • Refutation
        • K(c);N_SPINB(b),N_SPINP(d),S_FLIGHT
    • Try
      • Q(B);CHECK,N_PINB(b)
      • Vars
        • K(c);N_SPINP(d),P_SPINB(b),S_FLIGHT::S(G)
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK,N_PINB(b),XP(d)
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • Q(B);CHECK,N_PINB(b)
      • Vars
        • K(c);N_SPINP(d),S_FLIGHT::QAB(B)
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(c);N_SPINB(b),N_SPINP(d),S_FLIGHT::QAB1(B)
      • K(c);N_SPINB(b),N_SPINP(d),S_FLIGHT::QAB(B)
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