MESON Chess Problem Database

Problem Display
PID: 213055 (8/2r5/3b4/4p3/4B1p1/5NK1/p7/1bR2N1k w - - 0 1)

Hawes, Frederick Thomas

Suomen Shakki, 1960

8/2r5/3b4/4p3/4B1p1/5NK1/p7/1bR2N1k

#2

5 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ra7
      • 2.S1d2#
      • 2.S1h2#
      • 2.Se3#
    • 1...Rb7
      • 2.S1d2#
      • 2.S1h2#
      • 2.Se3#
    • 1...Rd7
      • 2.S1d2#
      • 2.S1h2#
      • 2.Se3#
    • 1...Re7
      • 2.S1d2#
      • 2.S1h2#
      • 2.Se3#
    • 1...Rf7
      • 2.S1d2#
      • 2.S1h2#
      • 2.Se3#
    • 1...Rg7
      • 2.S1d2#
      • 2.S1h2#
      • 2.Se3#
    • 1...Rh7
      • 2.S1d2#
      • 2.S1h2#
      • 2.Se3#
    • 1...Bc5
      • 2.Se3#
  • Tries
    • 1.Sd4+?
      • 1...Kg1
        • 2.Se2#
      • 1...Bxe4!
  • Keys
    • 1.Kf2!
      • threat
        • 2.Sg3#
      • 1...Rc2+
        • 2.S3d2#
      • 1...Bc5+
        • 2.Se3#
      • 1...g3+
        • 2.Sxg3#
      • 1...gxf3
        • 2.Bxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(f);S_CUTR(g)::R(A)+S(B)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::S(C)
      • Refutation
        • B(a);XB(E)
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • R(A)+S(B),DCHECK
    • Vars
      • R(g);CHECK,S_CUTB(a)::B(E)+S(C)
      • B(f);CHECK,S_CUTR(g)::R(A)+S(B)
      • P(d);CHECK::R(A)+S(B),DCHECK,XP(d)
      • P(d);OGATE,P_SPINP(d),XS(C)::B(E),XP(d)
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