MESON Chess Problem Database

Problem Display
PID: 101769 (8/3R2K1/4p3/4npRb/2r1k1BQ/2Bp3n/3P2Nb/2q2N2 w - - 0 1)

Bouchez, Laurent

diagrammes, 1990

8/3R2K1/4p3/4npRb/2r1k1BQ/2Bp3n/3P2Nb/2q2N2

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Qe1#
    • 1...Qxd2
      • 2.Sxd2#
    • 1...Qa3
      • 2.Qe1#
    • 1...Qe1
      • 2.Qxe1#
    • 1...Qc2
      • 2.Qe1#
    • 1...Qxc3
      • 2.Qe1#
    • 1...Rd4
      • 2.Rxd4#
    • 1...Rc5
      • 2.Rd4#
    • 1...Rc6
      • 2.Rd4#
    • 1...Rc8
      • 2.Rd4#
    • 1...Bg1
      • 2.Sg3#
    • 1...Bg3
      • 2.Sxg3#
    • 1...Sf3
      • 2.Bxf5#
    • 1...f4
      • 2.Rxe5#
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qe3#
      • 1...Qxd2
        • 2.Sxd2#
      • 1...Bxg3
        • 2.Sxg3#
      • 1...Sxg4
        • 2.Qxd3#
      • 1...Sxd7
        • 2.Qf3#
      • 1...Qe1
        • 2.Qxe1#
      • 1...Bg1
        • 2.Qxe5#
      • 1...Sf3
        • 2.Qxf3#
      • 1...f4
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(a);N_GUARD::QAR(F)
    • Q(a);XP(B)::S(A),XQ(a)
    • Q(a);N_GUARD::QAR(F),XQ(a)
    • Q(a);N_GUARD,XB(D)::QAR(F)
    • R(e);N_GUARD::R1(H),XR(e)
    • R(e);N_GUARD::R1(H)
    • B(b);N_GUARD::S(A)
    • B(b);N_GUARD::S(A),XB(b)
    • S(g);SBLOCK::QAR(F)+B(E),DCHECK,XP(h)
    • P(h);OGATE::R1(G),XS(g)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • Q(a);XP(B)::S(A),XQ(a)
      • B(b);XQ(F)::S(A),XB(b)
      • S(g);N_GUARD,XB(E)::QAB1(F),XP(c)
      • S(g);N_GUARD,XR(H)::QAB1(F)
      • Q(a);N_GUARD::QAR(F),XQ(a)
      • B(b);N_GUARD::QAR1(F),XS(g)
      • S(g);N_GUARD::QAB1(F),XS(g)
      • P(h);OGATE::R1(G),XS(g)
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