MESON Chess Problem Database

Problem Display
PID: 145776 (6B1/3K1N2/1B1N1b2/nP1k4/8/1R3Pr1/1n2b3/Q2qR3 w - - 0 1)

Cooms, LD

Good Companions (November), 1917

6B1/3K1N2/1B1N1b2/nP1k4/8/1R3Pr1/1n2b3/Q2qR3

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Sg5#
    • 1...Bd3
      • 2.Sg5#
    • 1...Bxf3
      • 2.Sg5#
    • 1...Bc4
      • 2.Sg5#
    • 1...Bxb5+
      • 2.Rxb5#
    • 1...Be5
      • 2.Sg5#
    • 1...Sd3
      • 2.Sg5#
    • 1...Sa4
      • 2.Sg5#
    • 1...Sbc4
      • 2.Sg5#
    • 1...Sxb3
      • 2.Qa8#
    • 1...Sac4
      • 2.Qa8#
  • Keys
    • 1.Sc4!
      • threat
        • 2.Se3#
        • 2.Sg5#
      • 1...Kxc4+
        • 2.Sd6#
      • 1...Qxb3
        • 2.Sg5#
      • 1...Rxf3
        • 2.Sg5#
        • 2.Sfd6#
      • 1...Rxg8
        • 2.Se3#
      • 1...Bxf3
        • 2.Sg5#
      • 1...Bxc4
        • 2.Sg5#
      • 1...Sbxc4
        • 2.Sg5#
      • 1...Saxc4
        • 2.Qa8#
      • 1...Qc1
        • 2.Sg5#
      • 1...Qd2
        • 2.Sg5#
      • 1...Qd3
        • 2.Sg5#
      • 1...Qd4
        • 2.Sg5#
      • 1...Rg5
        • 2.Se3#
        • 2.Sxg5#
      • 1...Rg6
        • 2.Se3#
      • 1...Rg7
        • 2.Se3#
      • 1...Bd4
        • 2.Sg5#
      • 1...Bg5
        • 2.Sfe5#
        • 2.Sxg5#
        • 2.Sfd6#
        • 2.Sh6#
        • 2.Sd8#
        • 2.Sh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 7
  • Sets
    • B(c);::B(J)+S(I)
    • B(c);XP(D)::B(J)+S(I)
    • B(c);CHECK,OGATE,XP(E)::R(C),XB(c)
    • B(g);SBLOCK::B(J)+S(I)
    • S(b);::B(J)+S(I)
    • S(e);OGATE,XR(C)::QAB(A)
    • S(e);OGATE::QAB(A)
  • Actual
    • S(G);
    • Threat
      • DUALS(2)
    • Vars
      • K(f);CHECK,S_FLIGHT,XS(G)::B(J)+S(I),DCHECK
      • Q(a);XR(C)::B(J)+S(I)
      • R(d);XB(J)::S(G)
      • B(c);XP(D)::B(J)+S(I)
      • B(c);SBLOCK,XS(G)::B(J)+S(I)
      • S(b);SBLOCK,XS(G)::B(J)+S(I)
      • S(e);OGATE,SBLOCK,XS(G)::QAB(A)
      • Q(a);::B(J)+S(I)
      • R(d);::S(G)
      • R(d);P_PINS(I)::S(G)
      • B(g);::B(J)+S(I)
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Developed and maintained by Brian Stephenson.
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