MESON Chess Problem Database

Problem Display
PID: 99063 (4B3/8/r2p4/p1pk1P1n/K1N1N2R/1P6/3Pn3/6Q1 w - - 0 1)

Bruch, Wieland

Sakkelet, 1998

4B3/8/r2p4/p1pk1P1n/K1N1N2R/1P6/3Pn3/6Q1

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Bf7#
    • 1...Sc1
      • 2.Sc3#
    • 1...Sxg1
      • 2.Sc3#
    • 1...Sc3+
      • 2.Sxc3#
    • 1...Seg3
      • 2.Sc3#
    • 1...Sd4
      • 2.Sc3#
    • 1...Sef4
      • 2.Sc3#
    • 1...Shg3
      • 2.Sf6#
    • 1...Shf4
      • 2.Sf6#
    • 1...Sf6
      • 2.Sxf6#
    • 1...Sg7
      • 2.Sf6#
  • Tries
    • 1.Qa1?
      • threat
        • 2.Se3#
      • 1...Sc3+
        • 2.Sxc3#
      • 1...Shf4
        • 2.Sf6#
      • 1...Sd4
        • 2.Sc3#
      • 1...Sef4!
    • 1.Qg7?
      • threat
        • 2.Se3#
      • 1...Sc3+
        • 2.Sxc3#
      • 1...Sxg7
        • 2.Sf6#
      • 1...Sef4
        • 2.Sc3#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Shf4!
  • Keys
    • 1.d4!
      • 1...Sc3+
        • 2.Sxc3#
      • 1...Sxg1
        • 2.Sc3#
      • 1...Sxd4
        • 2.Sc3#
      • 1...cxd4
        • 2.Qg8#
      • 1...Sef4
        • 2.Sc3#
      • 1...Shf4
        • 2.Sf6#
      • 1...Rb6
        • 2.Sxb6#
      • 1...Rc6
        • 2.Bf7#
      • 1...Ra7
        • 2.Sb6#
      • 1...Ra8
        • 2.Sb6#
      • 1...Sc1
        • 2.Sc3#
      • 1...Seg3
        • 2.Sc3#
      • 1...Shg3
        • 2.Sf6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sg7
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(f);SBLOCK::B(I)
    • S(a);N_GUARD::S(F)
    • S(a);N_GUARD,XQ(A)::S(F)
    • S(a);CHECK,N_GUARD::S(F),XS(a)
    • S(e);N_GUARD::S(F)
    • S(e);N_GUARD::S(F),XS(e)
  • Tries
    • Try
      • Q(A);
      • Threat
        • S(E)
      • Vars
        • S(a);CHECK,N_GUARD::S(F),XS(a)
        • S(e);N_GUARD::S(F)
        • S(a);N_GUARD::S(F)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • S(E)
      • Vars
        • S(a);CHECK,N_GUARD::S(F),XS(a)
        • S(e);N_GUARD,XQ(A)::S(F)
        • S(a);N_GUARD::S(F)
        • S(e);N_GUARD::S(F),XS(e)
      • Refutation
        • S(e);
  • Actual
    • P(B);
    • Vars
      • S(a);CHECK,N_GUARD::S(F),XS(a)
      • S(a);N_GUARD,XQ(A)::S(F)
      • S(a);N_GUARD,XP(B)::S(F)
      • P(c);SBLOCK,XP(B)::QAB(A)
      • S(a);N_GUARD::S(F)
      • S(e);N_GUARD::S(F)
      • R(f);N_GUARD::S(E),XR(f)
      • R(f);SBLOCK::B(I)
      • R(f);N_GUARD::S(E)
      • S(e);N_GUARD::S(F),XS(e)
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