MESON Chess Problem Database

Problem Display
PID: 47485 (k7/2K1p3/3p4/1P1pRn2/1P2p1n1/2b3R1/1P2r3/4qQBB w - - 0 1)

McDowell, Michael

The Problemist Supplement, 2002

k7/2K1p3/3p4/1P1pRn2/1P2p1n1/2b3R1/1P2r3/4qQBB

#2

9 + 10

56 The Problemist 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Qd2
      • 2.Qa1#
    • 1...Qxg3
      • 2.Qa1#
    • 1...Qa1
      • 2.Qxa1#
    • 1...Bd2
      • 2.Ra3#
    • 1...Bxe5
      • 2.Ra3#
    • 1...Sh2
      • 2.Rg8#
    • 1...Sxe5
      • 2.Rg8#
    • 1...Sxg3
      • 2.Qf8#
    • 1...Sh4
      • 2.Qf8#
    • 1...Sh6
      • 2.Qf8#
  • Keys
    • 1.b6!
      • threat
        • 2.b7#
      • 1...Qf2
        • 2.Qa1#
      • 1...Rf2
        • 2.Qa6#
      • 1...Re3
        • 2.Qa6#
      • 1...Bd4
        • 2.Ra3#
      • 1...Sf2
        • 2.Rg8#
      • 1...Sge3
        • 2.Rg8#
      • 1...Sfe3
        • 2.Qf8#
      • 1...Sd4
        • 2.Qf8#
      • 1...e3
        • 2.Bxd5#
      • 1...d4
        • 2.Ra5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 10
  • Sets
    • Q(a);OGATE::QAB(A)
    • Q(a);OGATE,XR(E)::QAB(A)
    • Q(a);OGATE::QAB(A),XQ(a)
    • B(c);OGATE::R(E)
    • B(c);OGATE,XR(H)::R(E)
    • S(e);OGATE::R(E)
    • S(e);OGATE,XR(H)::R(E)
    • S(g);OGATE,XR(E)::QAR(A)
    • S(g);OGATE::QAR(A)
  • Actual
    • P(G);
    • Threat
      • P(G)
    • Vars
      • Q(a);OGATE::QAB(A)
      • R(b);OGATE::QAR2(A)
      • B(c);OGATE::R(E)
      • S(e);OGATE::R(E)
      • S(g);OGATE::QAR(A)
      • P(d);OGATE,P_SPINP(f)::B(C),XP(f)
      • P(f);OGATE,P_SPINP(d)::R(H)
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