MESON Chess Problem Database

Problem Display
PID: 43962 (3N2n1/3pr3/3P1PR1/p1P1kB2/3R2P1/r2p1P2/p3n2q/K3N1Bb w - - 0 1)

Mackenzie, Arthur Ford

Lasker's Chess Magazine, 1904

3N2n1/3pr3/3P1PR1/p1P1kB2/3R2P1/r2p1P2/p3n2q/K3N1Bb

#2

12 + 11

6388 ChessMoves 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Sxd3#
    • 1...Re6
      • 2.Sf7#
    • 1...Rf7
      • 2.Sxf7#
    • 1...Re8
      • 2.Sf7#
    • 1...Bxf3
      • 2.Sxf3#
    • 1...Sc3
      • 2.Sxd3#
    • 1...Sg3
      • 2.f4#
  • Keys
    • 1.Be6!
      • threat
        • 2.Re4#
      • 1...Rxe6
        • 2.Sf7#
      • 1...Bxf3
        • 2.Sxf3#
      • 1...Sxd4
        • 2.Bxh2#
      • 1...Sxf6
        • 2.Rg5#
      • 1...dxe6
        • 2.Sc6#
      • 1...Qf4
        • 2.Rd5#
      • 1...Ra4
        • 2.Sxd3#
      • 1...Sc3
        • 2.Sxd3#
      • 1...Sg3
        • 2.f4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(e);N_GUARD::S(B),XP(f)
    • R(j);N_GUARD::S(L)
    • R(j);N_GUARD::S(L),XR(j)
    • B(a);XP(D)::S(B),XB(a)
    • S(c);S_CUTR(e)::S(B),XP(f)
    • S(c);N_GUARD,S_CUTQ(d)::P(D)
  • Actual
    • B(H);
    • Threat
      • R1(E)
    • Vars
      • R(j);N_GUARD,SBLOCK,XB(H)::S(L)
      • B(a);XP(D)::S(B),XB(a)
      • S(c);N_GUARD,SBLOCK,XR(E)::B(C),XQ(d)
      • S(k);SBLOCK,XP(J)::R(K)
      • P(i);N_GUARD,SBLOCK,XB(H)::S(L)
      • Q(d);SBLOCK::R1(E)
      • R(e);N_GUARD::S(B),XP(f)
      • S(c);S_CUTR(e)::S(B),XP(f)
      • S(c);N_GUARD,S_CUTQ(d)::P(D)
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