MESON Chess Problem Database

Problem Display
PID: 230246 (8/4K3/2bNpQ2/7B/1BP1r2p/3Nkp2/3R2np/7q w - - 0 1)

Swords, WJ

Southend Times, 1938

(First published on Wed Nov 2 1938)

8/4K3/2bNpQ2/7B/1BP1r2p/3Nkp2/3R2np/7q

#2

8 + 9

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...f2
      • 2.Qxf2#
    • 1...e5
      • 2.Sf5#
  • Keys
    • 1.Sf2!
      • threat
        • 2.Qxf3#
      • 1...Rxc4
        • 2.Sxc4#
      • 1...Qd1
        • 2.Sxd1#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Rf4
        • 2.Qc3#
      • 1...Rg4
        • 2.Sxg4#
      • 1...Re5
        • 2.Sg4#
      • 1...Se1
        • 2.Sd1#
      • 1...Sf4
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • P(e);OGATE::QAB1(G),XP(e)
    • P(i);N_GUARD::S(F)
  • Actual
    • S(B);
    • Threat
      • QAR1(G),XP(e)
    • Vars
      • R(f);XP(D)::S(F),XR(f)
      • Q(a);N_GUARD::S(B),XQ(a)
      • R(f);N_GUARD::QAB1(G),XR(f)
      • R(f);SBLOCK::QAR2(G)
      • R(f);N_GUARD::S(B),XR(f)
      • R(f);N_GUARD::S(B)
      • S(b);S_CUTQ(a)::S(B)
      • S(b);S_CUTR(f)::S(B)
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