MESON Chess Problem Database

Problem Display
PID: 146328 (8/8/B7/3p4/8/8/6kB/Q3K2R w K - 0 1)

McDowell, Michael

The Problemist, 2012

8/8/B7/3p4/8/8/6kB/Q3K2R

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Bf4?
      • 1...Kxh1
        • 2.Kf2#
      • 1...d4
        • 2.Bb7#
      • 1...Kf3!
    • 1.Be5?
      • 1...Kxh1
        • 2.Kf2#
      • 1...d4
        • 2.Bb7#
      • 1...Kf3!
    • 1.Bd6?
      • 1...Kxh1
        • 2.Kf2#
      • 1...d4
        • 2.Bb7#
      • 1...Kf3!
    • 1.Bc7?
      • 1...Kxh1
        • 2.Kf2#
      • 1...d4
        • 2.Bb7#
      • 1...Kf3!
    • 1.Bb8?
      • 1...Kxh1
        • 2.Kf2#
      • 1...d4
        • 2.Bb7#
      • 1...Kf3!
    • 1.Qc3?
      • 1...d4
        • 2.Bb7#
      • 1...Kxh1!
    • 1.Qg7+?
      • 1...Kxh1
        • 2.Qg1#
      • 1...Kh3
        • 2.Bg1#
        • 2.Bf4#
        • 2.Be5#
        • 2.Bd6#
        • 2.Bc7#
        • 2.Bb8#
        • 2.Qg3#
      • 1...Kf3!
    • 1.Qa3?
      • 1...d4
        • 2.Bb7#
      • 1...Kxh1!
  • Keys
    • 1.Qd4!
      • 1...Kxh1
        • 2.Qg1#
      • 1...Kf3
        • 2.0-0#
      • 1...Kh3
        • 2.Bf1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT,XR(C)::QAR(A)+K(B)
        • P(b);OGATEB::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT,XR(C)::QAR(A)+K(B)
        • P(b);OGATEB::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT,XR(C)::QAR(A)+K(B)
        • P(b);OGATEB::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT,XR(C)::QAR(A)+K(B)
        • P(b);OGATEB::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT,XR(C)::QAR(A)+K(B)
        • P(b);OGATEB::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);OGATEB::B(E)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XR(C)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);OGATEB::B(E)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT,XR(C)::QAR1(A)
      • K(a);S_FLIGHT::0-0
      • K(a);S_FLIGHT::B(E)
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