MESON Chess Problem Database

Problem Display
PID: 205888 (8/4pn2/4p2N/2QNk2p/K4p1r/2PP1R2/3nP3/8 w - - 0 1)

Mosely, Arthur James

American Chess Bulletin, 1913

8/4pn2/4p2N/2QNk2p/K4p1r/2PP1R2/3nP3/8

#2

8 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.d4#
    • 1...Sd6
      • 2.Qd4#
    • 1...exd5
      • 2.Qxe7#
  • Tries
    • 1.Re3+?
      • 1...Se4
        • 2.Rxe4#
        • 2.d4#
      • 1...fxe3+!
  • Keys
    • 1.e4!
      • threat
        • 2.Sxf7#
      • 1...fxe4 ep+
        • 2.Sb4#
      • 1...Sxe4
        • 2.d4#
      • 1...Sxh6
        • 2.Qc7#
      • 1...exd5
        • 2.Qxe7#
      • 1...Sg5
        • 2.Qc7#
      • 1...Sd6
        • 2.Qd4#
      • 1...Sd8
        • 2.Qc7#
      • 1...Sh8
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::P(C)
    • S(h);SBLOCK::QAB1(F)
    • P(f);OGATEB,P_SPINP(f),SBLOCK,XS(G)::QAR2(F),XP(g)
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • P(b);CHECK,XR(D)
  • Actual
    • P(A);
    • Threat
      • S(H),XS(h)
    • Vars
      • P(b);CHECK,EP,XP(A)::QAR(F)+S(G)
      • S(a);SBLOCK,XP(A)::P(C)
      • S(h);N_GUARD,XS(H)::QAB(F)
      • P(f);OGATEB,P_SPINP(f),XS(G)::QAR2(F),XP(g)
      • S(h);N_GUARD::QAB(F)
      • S(h);SBLOCK::QAB1(F)
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