MESON Chess Problem Database

Problem Display
PID: 55851 (2n5/b7/3pP3/1KBk1P2/3Pp3/1n3bQ1/3Rp3/8 w - - 0 1)

Onkoud, Abdelaziz

2nd HM., Probleemblad, 2004

2n5/b7/3pP3/1KBk1P2/3Pp3/1n3bQ1/3Rp3/8

#2

7 + 8

102 Probleemblad 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Qxb3#
    • 1...Bg2
      • 2.Qxb3#
    • 1...Bg4
      • 2.Qxb3#
    • 1...Bh5
      • 2.Qxb3#
    • 1...Sxd4+
      • 2.Rxd4#
    • 1...Sxc5
      • 2.dxc5#
    • 1...Sb6
      • 2.Qxd6#
    • 1...Se7
      • 2.Qxd6#
    • 1...e3
      • 2.Qxf3#
    • 1...dxc5
      • 2.Qe5#
  • Keys
    • 1.e7!
      • threat
        • 2.Qg8#
      • 1...Sxd4+
        • 2.Rxd4#
      • 1...Sxc5
        • 2.dxc5#
      • 1...Sxe7
        • 2.Qxd6#
      • 1...dxc5
        • 2.Qe5#
      • 1...e3
        • 2.Qxf3#
      • 1...Bg4
        • 2.Qxb3#
      • 1...Bh5
        • 2.Qxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • B(c);OGATE::QAB(B),XS(b)
    • S(b);CHECK,OGATE,P_SPINS(b),XP(C)::R1(A),XS(b)
    • S(b);OGATE,XB(E)::R(A)+P(C),XS(b)
    • S(h);N_GUARD::QAR1(B),XP(f)
    • P(d);OGATEB::QAB(B),XB(c)
    • P(f);N_GUARD,XB(E)::QAR1(B)
  • Actual
    • P(G);
    • Threat
      • QAB(B)
    • Vars
      • S(b);CHECK,OGATE,P_SPINS(b),XP(C)::R1(A),XS(b)
      • S(b);OGATE,XB(E)::R(A)+P(C),XS(b)
      • S(h);N_GUARD,XP(G)::QAR1(B),XP(f)
      • P(f);N_GUARD,XB(E)::QAR1(B)
      • P(d);OGATEB::QAB(B),XB(c)
      • B(c);OGATE::QAB(B),XS(b)
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