MESON Chess Problem Database

Problem Display
PID: 69752 (1NK2b2/1ppp4/p7/2k5/1R2P3/N1Pp4/7B/3qn3 w - - 0 1)

Groeneveld, Cornelis

3rd HM., Sachove umeni (Ceskoslovensky sach), 2003-2004

1NK2b2/1ppp4/p7/2k5/1R2P3/N1Pp4/7B/3qn3

#2

7 + 9

102 Probleemblad 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Bg1#
    • 1...a5
      • 2.Rb5#
    • 1...b6
      • 2.Rc4#
    • 1...c6
      • 2.Sxd7#
    • 1...d6
      • 2.Bg1#
  • Tries
    • 1.Kxb7?
      • threat
        • 2.Sxa6#
        • 2.Sxd7#
        • 2.Rc4#
      • 1...Qb3
        • 2.Sxa6#
        • 2.Sxd7#
      • 1...Qg4
        • 2.Sxa6#
        • 2.Rc4#
      • 1...Qb1
        • 2.Sxa6#
        • 2.Sxd7#
      • 1...a5
        • 2.Sa6#
        • 2.Sxd7#
        • 2.Rc4#
        • 2.Rb5#
      • 1...d5
        • 2.Sxa6#
        • 2.Sd7#
      • 1...d6
        • 2.Sxa6#
        • 2.Sd7#
        • 2.Bg1#
        • 2.Rc4#
      • 1...Qa4!
  • Keys
    • 1.Kxc7!
      • threat
        • 2.Sxd7#
        • 2.Bg1#
        • 2.Rc4#
      • 1...Bd6+
        • 2.Bxd6#
      • 1...Qc2
        • 2.Sxd7#
        • 2.Rc4#
      • 1...Qe2
        • 2.Sxd7#
        • 2.Rc4#
      • 1...Qb3
        • 2.Sxd7#
        • 2.Bg1#
      • 1...Qf3
        • 2.Sxd7#
        • 2.Rc4#
      • 1...Qa4
        • 2.Bg1#
      • 1...Qg4
        • 2.Rc4#
      • 1...Qc1
        • 2.Sxd7#
        • 2.Rc4#
      • 1...Qd2
        • 2.Sxd7#
        • 2.Rc4#
      • 1...Bh6
        • 2.Sxd7#
        • 2.Bd6#
        • 2.Rc4#
      • 1...Bg7
        • 2.Sxd7#
        • 2.Bd6#
        • 2.Rc4#
      • 1...Sc2
        • 2.Sxd7#
        • 2.Rc4#
      • 1...Sg2
        • 2.Sxd7#
        • 2.Rc4#
      • 1...Sf3
        • 2.Sxd7#
        • 2.Rc4#
      • 1...b5
        • 2.Sxa6#
        • 2.Sxd7#
        • 2.Bg1#
      • 1...d5
        • 2.Sd7#
      • 1...d6
        • 2.Sd7#
        • 2.Bg1#
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(i);SBLOCK::B(A)
    • P(e);N_GUARD::R1(D)
    • P(f);SBLOCK::R1(D)
    • P(g);SBLOCK::S(F),XP(h)
    • P(h);SBLOCK::B(A)
  • Tries
    • Try
      • K(G);S_FLIGHT,XP(f)
      • Threat
        • DUALS(3)
      • Refutation
        • Q(a);
  • Actual
    • K(G);P-FLIGHT,XP(g)
    • Threat
      • DUALS(3)
    • Vars
      • B(i);CHECK,N_GUARD::B(A),XB(i)
      • Q(a);::B(A)
      • Q(a);::R1(D)
      • P(h);::S(F)
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