MESON Chess Problem Database

Problem Display
PID: 224279 (8/8/1K6/Q7/4p3/4kp2/5N2/5R2 w - - 0 1)

Carney, Edward

Brownson's Chess Journal, 1887

8/8/1K6/Q7/4p3/4kp2/5N2/5R2

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke2
      • 2.Qe1#
    • 1...Kd4
      • 2.Qc5#
  • Tries
    • 1.Kc5?
      • 1...Ke2
        • 2.Qe1#
      • 1...Kf4!
    • 1.Kc6?
      • 1...Ke2
        • 2.Qe1#
      • 1...Kd4
        • 2.Qc5#
      • 1...Kf4!
    • 1.Qc3+?
      • 1...Ke2
        • 2.Qe1#
      • 1...Kf4!
    • 1.Qb4?
      • 1...Ke2
        • 2.Qe1#
      • 1...Kf4!
    • 1.Qg5+?
      • 1...Kd4
        • 2.Qc5#
      • 1...Ke2!
  • Keys
    • 1.Rg1!
      • 1...Ke2
        • 2.Qe1#
      • 1...Kxf2
        • 2.Qe1#
      • 1...Kd4
        • 2.Qc5#
      • 1...Kf4
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(C)
    • K(a);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • K(a);S_FLIGHT,XS(B)::QAB1(C)
      • K(a);S_FLIGHT::QAB1(C)
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