MESON Chess Problem Database

Problem Display
PID: 2052 (4Q3/B7/3pBp1r/R1n4p/5k1p/8/1R5P/4K1N1 w - - 0 1)

Barry, Henry William

Les Tours de Force sur l'Echiquier, 1906

4Q3/B7/3pBp1r/R1n4p/5k1p/8/1R5P/4K1N1

#2

8 + 7

2794 Terms & Themes of Chess Problems 1907

SOLUTION

  • SOUND
  • Sets
    • 1...Kg5
      • 2.Sh3#
    • 1...Sa4
      • 2.Rb4#
      • 2.Qxa4#
    • 1...Sb7
      • 2.Rb4#
      • 2.Qa4#
    • 1...Sd7
      • 2.Rb4#
  • Tries
    • 1.Rb4+?
      • 1...Ke3
        • 2.Bf5#
        • 2.Ra3#
      • 1...Ke5
        • 2.Sf3#
      • 1...Kg5
        • 2.Sf3#
        • 2.Sh3#
      • 1...Se4!
  • Keys
    • 1.Qa4+!
      • 1...Ke3
        • 2.Rb3#
      • 1...Ke5
        • 2.Re2#
      • 1...Kg5
        • 2.Rg2#
      • 1...Sxa4
        • 2.Rb4#
      • 1...Se4
        • 2.Rf2#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(a);P_SPINS(c),S_FLIGHT::S(B)
    • S(c);N_GUARD::R(C)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P_SPINS(c),S_FLIGHT::S(B)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • Q(H);CHECK
    • Vars
      • K(a);P_SPINS(c),S_FLIGHT::R(C)
      • S(c);N_GUARD,XQ(H)::R(C)
      • S(c);P_SPINS(c)::R(C)
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