MESON Chess Problem Database

Problem Display
PID: 17691 (7Q/4p3/4B3/7N/8/3pPNP1/3P2k1/4K3 w - - 0 1)

Mansfield, Comins

Somerset Chess Association Supplement, 1948

7Q/4p3/4B3/7N/8/3pPNP1/3P2k1/4K3

#2

8 + 3

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Kh1
      • 2.Sf4#
    • 1...Kxf3
      • 2.Qa8#
  • Tries
    • 1.Sf4+?
      • 1...Kxg3
        • 2.Qh3#
      • 1...Kxf3!
    • 1.Sg7?
      • 1...Kxg3
        • 2.Qh3#
      • 1...Kxf3!
    • 1.Qb2?
      • 1...Kxf3
        • 2.Qb7#
      • 1...Kh1!
    • 1.Qc3?
      • 1...Kxf3
        • 2.Qc6#
      • 1...Kh1!
    • 1.Qd4?
      • 1...Kxf3
        • 2.Bd5#
        • 2.Qd5#
      • 1...Kh1!
    • 1.Qe5?
      • 1...Kxf3
        • 2.Qd5#
      • 1...Kh1!
    • 1.Qg7?
      • 1...Kxf3
        • 2.Bd5#
      • 1...Kh1!
    • 1.Qh6?
      • 1...Kh1
        • 2.Sf4#
      • 1...Kxf3!
    • 1.Qh7?
      • 1...Kh1
        • 2.Sf4#
      • 1...Kxf3!
    • 1.Qb8?
      • 1...Kxf3
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kh1!
    • 1.Qc8?
      • 1...Kxf3
        • 2.Bd5#
        • 2.Qb7#
        • 2.Qc6#
        • 2.Qa8#
      • 1...Kh1!
    • 1.Qd8?
      • 1...Kxf3
        • 2.Qd5#
        • 2.Qa8#
      • 1...Kh1!
    • 1.Qe8?
      • 1...Kxf3
        • 2.Qc6#
        • 2.Qa8#
      • 1...Kh1!
    • 1.Qg8?
      • 1...Kxf3
        • 2.Bd5#
        • 2.Qa8#
      • 1...Kh1!
    • 1.e4?
      • 1...Kh1
        • 2.Sf4#
      • 1...Kxf3!
    • 1.g4?
      • 1...Kh1
        • 2.Sf4#
      • 1...Kxf3
        • 2.Qa8#
      • 1...Kh3!
  • Keys
    • 1.Qa1!
      • 1...Kh1
        • 2.Kf2#
      • 1...Kxf3
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR(H)+S(F)
    • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(H)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(E)::QAR1(H)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • S(F);
      • Vars
        • K(a);P-FLIGHT,XP(E)::QAR1(H)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(H);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::B(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(a);S_FLIGHT::QAR(H)+S(F)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(H);
      • Vars
        • K(a);S_FLIGHT::QAR(H)+S(F)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(C);
      • Vars
        • K(a);S_FLIGHT::QAR(H)+S(F)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • P(E);
      • Vars
        • K(a);S_FLIGHT::QAR(H)+S(F)
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(H)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(H);
    • Vars
      • K(a);S_FLIGHT::QAR(H)+K(A)
      • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(H)
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