MESON Chess Problem Database

Problem Display
PID: 30306 (1K1b4/2p5/5R2/1k5r/4N3/p7/1NnBr3/3b2Q1 w - - 0 1)

Shire, David J

The Problemist, 1989

1K1b4/2p5/5R2/1k5r/4N3/p7/1NnBr3/3b2Q1

#2

6 + 8

3256 David Shire Selected Chess Problems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qc5#
    • 1...Rh2
      • 2.Qc5#
    • 1...Rh3
      • 2.Qc5#
    • 1...Rh4
      • 2.Qc5#
    • 1...Rc5
      • 2.Qxc5#
    • 1...Rh6
      • 2.Qc5#
    • 1...Rh7
      • 2.Qc5#
    • 1...Rh8
      • 2.Qc5#
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qa4#
        • 2.Qa5#
        • 2.Qa6#
        • 2.Qb7#
      • 1...Rxd2
        • 2.Qa4#
      • 1...Rxe4
        • 2.Qa5#
      • 1...Bxf6
        • 2.Qb7#
      • 1...axb2
        • 2.Qa6#
      • 1...Sa1
        • 2.Qa5#
        • 2.Qa6#
        • 2.Qb7#
      • 1...Se1
        • 2.Qa5#
        • 2.Qa6#
        • 2.Qb7#
      • 1...Se3
        • 2.Qa5#
        • 2.Qa6#
        • 2.Qb7#
      • 1...Sb4
        • 2.Sc3#
      • 1...Sd4
        • 2.Qa5#
        • 2.Qa6#
        • 2.Qb7#
      • 1...c5
        • 2.Qa4#
        • 2.Qa6#
        • 2.Qd7#
      • 1...c6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 8
  • Sets
    • R(f);N_GUARD::QAR1(A)
    • R(f);N_GUARD::QAR1(A),XR(f)
  • Actual
    • Q(A);
    • Threat
      • DUALS(4)
    • Vars
      • R(c);XB(C)::QAB1(A)
      • R(c);XS(D)::QAR1(A)
      • B(h);XR(E)::QAR2(A)
      • P(d);XS(B)::QAB1(A)
      • S(b);SBLOCK::S(D)
      • P(g);N_GUARD,SBLOCK::S(D)
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