MESON Chess Problem Database

Problem Display
PID: 200633 (2Q1b3/1K6/1p1pN3/2Bk4/6R1/n7/1bn5/3NR3 w - - 0 1)

Aloni, Yoel

Problemas, 1993

2Q1b3/1K6/1p1pN3/2Bk4/6R1/n7/1bn5/3NR3

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sc3#
    • 1...Bc3
      • 2.Sxc3#
    • 1...Bh5
      • 2.Qc6#
    • 1...Bc6+
      • 2.Qxc6#
    • 1...Bg6
      • 2.Qc6#
    • 1...Bf7
      • 2.Qc6#
    • 1...Sc4
      • 2.Sf4#
    • 1...bxc5
      • 2.Sc7#
  • Keys
    • 1.Bd4!
      • threat
        • 2.Rg5#
      • 1...Bc6+
        • 2.Qxc6#
      • 1...Bxd4
        • 2.Sf4#
      • 1...Sxe1
        • 2.Se3#
      • 1...Sxd4
        • 2.Sf4#
      • 1...Bc1
        • 2.Sc3#
      • 1...Bg6
        • 2.Qc6#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sc4
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::S(A)
    • B(a);N_GUARD::S(A),XB(a)
    • B(g);N_GUARD::QAB1(G)
    • B(g);CHECK,N_GUARD::QAB1(G),XB(g)
    • S(c);SBLOCK::S(E)
    • P(e);SBLOCK,XB(D)::S(E)
  • Actual
    • B(D);
    • Threat
      • R(C)
    • Vars
      • B(g);CHECK,N_GUARD::QAB1(G),XB(g)
      • B(a);SBLOCK,XB(D)::S(E)
      • S(b);N_GUARD,XR(B)::S(A)
      • S(b);SBLOCK,XB(D)::S(E)
      • B(a);N_GUARD::S(A)
      • B(g);N_GUARD::QAB1(G)
      • S(b);N_GUARD::S(A),XS(b)
      • S(c);SBLOCK::S(E)
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