MESON Chess Problem Database

Problem Display
PID: 2765 (2B2b2/RN2nkrP/Q1p2qpB/1nKp4/3Np3/3bP3/8/5R2 w - - 0 1)

Vaughn, Thomas

Source?, 0000

2B2b2/RN2nkrP/Q1p2qpB/1nKp4/3Np3/3bP3/8/5R2

#2

10 + 11

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Sa3
      • 2.Sd6#
    • 1...Sc3
      • 2.Sd6#
    • 1...Sxd4
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sxa7
      • 2.Sd6#
    • 1...Sc7
      • 2.Sd6#
    • 1...Sf5+
      • 2.Sd6#
    • 1...Sxc8+
      • 2.Sd6#
    • 1...Sg8+
      • 2.Sd6#
  • Keys
    • 1.Qxc6!
      • threat
        • 2.Sd8#
        • 2.Be6#
        • 2.Rxf6#
      • 1...Sf5+
        • 2.Sd6#
      • 1...Sxc6+
        • 2.Sd6#
      • 1...Sxc8+
        • 2.Sd6#
      • 1...Sg8+
        • 2.Sd6#
      • 1...Qxf1
        • 2.Sd8#
      • 1...Rxh7
        • 2.Be6#
      • 1...Bxf1
        • 2.Sd8#
      • 1...Sxd4
        • 2.Sd6#
        • 2.Sd8#
        • 2.Rxf6#
      • 1...g5
        • 2.Rxf6#
      • 1...Qf2
        • 2.Sd8#
      • 1...Qf3
        • 2.Sd8#
      • 1...Qf4
        • 2.Sd8#
      • 1...Qf5
        • 2.Sd8#
      • 1...Sd6
        • 2.Sxd6#
        • 2.Sd8#
        • 2.Be6#
      • 1...Sc7
        • 2.Sd6#
        • 2.Sd8#
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 6
  • Sets
    • S(c);N_GUARD::S(H)
    • S(c);N_GUARD,XS(C)::S(H)
    • S(c);N_GUARD::S(H),XS(c)
    • S(c);N_GUARD,XR(G)::S(H)
    • S(h);CHECK,N_SPINQ(f)::R(G)+S(H),DCHECK
    • S(h);CHECK,XB(J)::R(G)+S(H),DCHECK
    • S(h);CHECK::R(G)+S(H),DCHECK
  • Actual
    • Q(E);XP(e)
    • Threat
      • DUALS(3)
    • Vars
      • S(h);CHECK,N_SPINQ(f)::R(G)+S(H),DCHECK
      • S(h);CHECK,XQ(E)::R(G)+S(H),DCHECK
      • S(h);CHECK,XB(J)::R(G)+S(H),DCHECK
      • S(h);CHECK::R(G)+S(H),DCHECK
      • Q(f);N_SPINQ(f),XR(A)::S(H)
      • R(j);XP(I)::B(J)
      • B(a);N_SPINQ(f),XR(A)::S(H)
      • P(g);::R1(A),XQ(f)
      • Q(f);::S(H)
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