MESON Chess Problem Database

Problem Display
PID: 253092 (2B1N3/4p3/4r2R/B1p2k2/2K4p/3pPPnP/7Q/8 w - - 0 1)

Woods, AHE

Manchester Weekly Times, 1890

(First published on Sat Apr 26 1890)

2B1N3/4p3/4r2R/B1p2k2/2K4p/3pPPnP/7Q/8

#2

9 + 7

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Rh5#
    • 1...Sf1
      • 2.Qf4#
    • 1...Sh1
      • 2.Qf4#
    • 1...Se4
      • 2.Qf4#
  • Tries
    • 1.Sg7+?
      • 1...Ke5
        • 2.Rxe6#
      • 1...Kg5!
    • 1.Bxe6+?
      • 1...Ke5
        • 2.Bc3#
        • 2.Bc7#
        • 2.Qb2#
      • 1...Kg5!
  • Keys
    • 1.Bd2!
      • 1...Ke5
        • 2.Rh5#
      • 1...Kg5
        • 2.e4#
      • 1...Se2
        • 2.e4#
      • 1...Sf1
        • 2.Qf4#
        • 2.e4#
      • 1...Sh1
        • 2.Qf4#
        • 2.e4#
      • 1...Se4
        • 2.Qf4#
      • 1...Sh5
        • 2.e4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(e);N_GUARD,N_SPINR(f),P-FLIGHT,P_SPINS(b)::R(G)
    • S(b);OGATE::QAR1(A)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(e);N_GUARD,N_SPINR(f),P-FLIGHT,P_SPINS(b)::R1(G),XR(f)
      • Refutation
        • K(e);N_SPINR(f),P-FLIGHT
    • Try
      • B(H);CHECK,XR(f)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • B(F);
    • Vars
      • K(e);N_GUARD,N_SPINR(f),P-FLIGHT,P_SPINS(b)::R(G)
      • K(e);N_GUARD,N_SPINR(f),P-FLIGHT,S_CUTS(b)::B(F)+P(B)
      • S(b);N_GUARD::P(B)
      • S(b);OGATE::QAR1(A)
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