MESON Chess Problem Database

Problem Display
PID: 185311 (2Q5/8/5r2/4b3/2Pk4/8/2KN4/4B3 w - - 0 1)

Laws, Benjamin Glover

Source?, 0000

2Q5/8/5r2/4b3/2Pk4/8/2KN4/4B3

#2

5 + 3

15 British Chess Magazine 1918

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Bxf2#
    • 1...Ra6
      • 2.Bf2#
    • 1...Rb6
      • 2.Bf2#
    • 1...Rc6
      • 2.Bf2#
    • 1...Rd6
      • 2.Bf2#
    • 1...Re6
      • 2.Bf2#
    • 1...Rg6
      • 2.Bf2#
    • 1...Rh6
      • 2.Bf2#
  • Keys
    • 1.Qe6!
      • 1...Ke3
        • 2.Qxe5#
      • 1...Kc5
        • 2.Sb3#
      • 1...Rxe6
        • 2.Bf2#
      • 1...Rf1
        • 2.Qb6#
      • 1...Rf2
        • 2.Bxf2#
        • 2.Qb6#
      • 1...Rf3
        • 2.Qb6#
      • 1...Rf4
        • 2.Qb6#
      • 1...Rf5
        • 2.Qb6#
      • 1...Rg6
        • 2.Bf2#
      • 1...Rh6
        • 2.Bf2#
      • 1...Rf7
        • 2.Qb6#
      • 1...Rf8
        • 2.Qb6#
      • 1...Bh2
        • 2.Sb3#
      • 1...Bg3
        • 2.Sb3#
      • 1...Bf4
        • 2.Sb3#
      • 1...Bd6
        • 2.Sb3#
      • 1...Bc7
        • 2.Sb3#
      • 1...Bb8
        • 2.Sb3#

This is after 2463

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD,P_PINS(C)::B(A),XR(c)
    • R(c);N_GUARD::B(A)
    • R(c);N_GUARD,P_PINP(D)::B(A)
  • Actual
    • Q(E);
    • Vars
      • K(a);P_SPINB(b),S_FLIGHT::QAR2(E),XB(b)
      • K(a);S_FLIGHT::S(C)
      • R(c);N_GUARD,XQ(E)::B(A)
      • R(c);N_GUARD::QAB(E)
      • R(c);N_GUARD::B(A)
      • B(b);::S(C)
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