MESON Chess Problem Database

Problem Display
PID: 21917 (5N1b/6kP/R2n4/2R5/2n3B1/B7/4K3/7Q w - - 0 1)

Thompson, Walter Hood

Chess Amateur (The), 1922

5N1b/6kP/R2n4/2R5/2n3B1/B7/4K3/7Q

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Rc7#
    • 1...Sb7
      • 2.Rc7#
  • Tries
    • 1.Rc7+?
      • 1...Kxf8
        • 2.Ra8#
        • 2.Qa8#
      • 1...Sf7
        • 2.Rg6#
        • 2.Qh6#
      • 1...Kf6!
  • Keys
    • 1.Qb7+!
      • 1...Kf6
        • 2.Rf5#
      • 1...Kh6
        • 2.Rh5#
      • 1...Kxf8
        • 2.Rc8#
      • 1...Sxb7
        • 2.Rc7#
      • 1...Sf7
        • 2.Rg5#

There are these versions: 144925

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(b);N_GUARD::R(E)
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT
  • Actual
    • Q(A);CHECK
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT::R1(E)
      • K(c);S_FLIGHT,XS(H)::R(E)
      • S(b);N_GUARD,XQ(A)::R(E)
      • S(b);P_SPINS(b)::R(E)
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