MESON Chess Problem Database

Problem Display
PID: 132990 (r6k/4N1p1/2p1K1p1/6N1/4p3/8/3Q4/B6r w - - 0 1)

Rothwell, Stephen

Heilbronner Stimme, 1999

r6k/4N1p1/2p1K1p1/6N1/4p3/8/3Q4/B6r

#2

5 + 7

14503 Problemschach-Jahrbuch (1999) 2000
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rhxa1
      • 2.Qh2#
    • 1...Rb1
      • 2.Qh2#
    • 1...Rc1
      • 2.Qh2#
    • 1...Rd1
      • 2.Qh2#
    • 1...Re1
      • 2.Qh2#
    • 1...Rf1
      • 2.Qh2#
    • 1...Rg1
      • 2.Qh2#
    • 1...Rh2
      • 2.Qxh2#
    • 1...Rh7
      • 2.Sf7#
    • 1...Raxa1
      • 2.Qd8#
    • 1...Ra2
      • 2.Qd8#
    • 1...Ra3
      • 2.Qd8#
    • 1...Ra4
      • 2.Qd8#
    • 1...Ra5
      • 2.Qd8#
    • 1...Ra6
      • 2.Qd8#
    • 1...Ra7
      • 2.Qd8#
    • 1...Rd8
      • 2.Qxd8#
    • 1...Rg8
      • 2.Sxg6#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qxg7#
      • 1...Rhxa1
        • 2.Qh3#
      • 1...Rh7
        • 2.Sf7#
      • 1...Rg8
        • 2.Sxg6#
      • 1...Raxa1!
    • 1.Qd4?
      • threat
        • 2.Qxg7#
      • 1...Raxa1
        • 2.Qd8#
      • 1...Rh7
        • 2.Sf7#
      • 1...Rg8
        • 2.Sxg6#
      • 1...Rhxa1!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Qxg7#
      • 1...Rhxa1
        • 2.Qh2#
      • 1...Raxa1
        • 2.Qb8#
      • 1...Rh7
        • 2.Sf7#
      • 1...Rg8
        • 2.Sxg6#

Anticipated by 99153(1984)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 14
  • Sets
    • R(a);N_GUARD,N_SPINP(e),XB(A)::QAR(B)
    • R(a);N_GUARD::QAR(B)
    • R(a);N_GUARD::QAR(B),XR(a)
    • R(a);SBLOCK::S(C)
    • R(f);N_GUARD,N_SPINP(e),XB(A)::QAR(B)
    • R(f);N_GUARD::QAR(B)
    • R(f);N_GUARD::QAR(B),XR(f)
    • R(f);SBLOCK::S(E),XP(d)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(e)
      • Vars
        • R(a);N_GUARD,XB(A)::QAR(B)
        • R(a);SBLOCK::S(C)
        • R(f);SBLOCK::S(E),XP(d)
      • Refutation
        • R(f);XB(A)
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(e)
      • Vars
        • R(f);N_GUARD,XB(A)::QAR(B)
        • R(a);SBLOCK::S(C)
        • R(f);SBLOCK::S(E),XP(d)
      • Refutation
        • R(a);XB(A)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XP(e)
    • Vars
      • R(a);N_GUARD,XB(A)::QAR(B)
      • R(f);N_GUARD,XB(A)::QAR(B)
      • R(a);SBLOCK::S(C)
      • R(f);SBLOCK::S(E),XP(d)
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