MESON Chess Problem Database

Problem Display
PID: 194008 (7Q/P4p2/1N3R2/Kp6/1P1kq3/2n1R3/8/4N3 w - - 0 1)

Hamilton, Thomas

Chess Amateur (The), 1917

7Q/P4p2/1N3R2/Kp6/1P1kq3/2n1R3/8/4N3

#2

8 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Sf3#
    • 1...Qh1
      • 2.Sc2#
    • 1...Qc2
      • 2.Sxc2#
    • 1...Qf3
      • 2.Sc2#
    • 1...Qd5
      • 2.Sc2#
    • 1...Qc6
      • 2.Sc2#
    • 1...Qb7
      • 2.Sc2#
    • 1...Qa8
      • 2.Sc2#
    • 1...Qxe3
      • 2.Rf4#
    • 1...Qf4
      • 2.Sc2#
    • 1...Qg4
      • 2.Sc2#
    • 1...Qh4
      • 2.Sc2#
    • 1...Qe5
      • 2.Sc2#
    • 1...Qe6
      • 2.Sc2#
    • 1...Qe7
      • 2.Sc2#
    • 1...Qe8
      • 2.Sc2#
  • Tries
    • 1.Rd3+?
      • 1...Ke5
        • 2.Sd7#
      • 1...Qxd3!
    • 1.Rff3+?
      • 1...Qe5
        • 2.Sc2#
        • 2.Qxe5#
      • 1...f6!
    • 1.Rxf7+?
      • 1...Qe5
        • 2.Sc2#
        • 2.Qxe5#
      • 1...Kxe3!
  • Keys
    • 1.Qh4!
      • 1...Kxe3
        • 2.Qf2#
      • 1...Ke5
        • 2.Sf3#
      • 1...Qxh4
        • 2.Sc2#
      • 1...Qf4
        • 2.Sc2#
      • 1...Qg4
        • 2.Sc2#
      • 1...Sb1
        • 2.Qxe4#
      • 1...Sd1
        • 2.Qxe4#
      • 1...Sa2
        • 2.Qxe4#
      • 1...Se2
        • 2.Qxe4#
      • 1...Sa4
        • 2.Qxe4#
      • 1...Sd5
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 12
  • Sets
    • K(b);P_SPINQ(c),S_FLIGHT::S(A)
    • Q(c);N_GUARD::S(A)
    • Q(c);N_GUARD::S(A),XQ(c)
    • Q(c);N_GUARD,P_PINP(G)::S(A)
    • Q(c);SBLOCK,XR(B)::QAB(H)+R(F),DCHECK
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(b);S_FLIGHT::S(E)
      • Refutation
        • Q(c);XR(B)
    • Try
      • R(F);CHECK
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • R(F);CHECK,XP(e)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
  • Actual
    • Q(H);P_PINQ(c)
    • Vars
      • K(b);N_SPINQ(c),OGATEB,S_FLIGHT,XR(B)::QAB1(H)
      • K(b);S_FLIGHT::S(A)
      • Q(c);N_SPINQ(c),XQ(H)::S(A)
      • Q(c);::S(A)
      • S(a);N_GUARD::QAR1(H),XQ(c)
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