MESON Chess Problem Database

Problem Display
PID: 50061 (7Q/8/8/8/8/5P2/6kB/2N1K2R w K - 0 1)

Rice, John Michael

Comm., The Problemist, 1993

7Q/8/8/8/8/5P2/6kB/2N1K2R

#2

6 + 1

5174 Chess Problem Spectrum 2003

SOLUTION

  • SOUND
  • Tries
    • 1.Qb2+?
      • 1...Kxf3
        • 2.Qe2#
      • 1...Kh3
        • 2.Bf4#
        • 2.Be5#
        • 2.Bd6#
        • 2.Bc7#
        • 2.Bb8#
      • 1...Kxh1!
    • 1.Qe5?
      • 1...Kxf3
        • 2.Qe2#
      • 1...Kh3
        • 2.Qg3#
      • 1...Kxh1!
    • 1.Qg7+?
      • 1...Kxh1
        • 2.Qg1#
      • 1...Kh3
        • 2.Bg1#
        • 2.Bf4#
        • 2.Be5#
        • 2.Bd6#
        • 2.Bc7#
        • 2.Bb8#
        • 2.Qg3#
        • 2.Qg4#
      • 1...Kxf3!
    • 1.Qg8+?
      • 1...Kxh1
        • 2.Qg1#
      • 1...Kh3
        • 2.Bg1#
        • 2.Bf4#
        • 2.Be5#
        • 2.Bd6#
        • 2.Bc7#
        • 2.Bb8#
        • 2.Qg3#
        • 2.Qg4#
      • 1...Kxf3!
  • Keys
    • 1.Qd4!
      • 1...Kxh1
        • 2.Qg1#
      • 1...Kxf3
        • 2.0-0#
      • 1...Kh3
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(E)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT,XP(E)::QAB1(F)
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XR(C)::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XP(E)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XR(C)::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XP(E)
  • Actual
    • Q(F);
    • Vars
      • K(a);S_FLIGHT,XR(C)::QAR1(F)
      • K(a);S_FLIGHT,XP(E)::0-0
      • K(a);S_FLIGHT::QAB1(F)
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