MESON Chess Problem Database

Problem Display
PID: 7517 (8/B4N2/2P5/2r1P3/4k1P1/6bR/3Q2K1/8 w - - 0 1)

Shire, David J

The Problemist, 1990

8/B4N2/2P5/2r1P3/4k1P1/6bR/3Q2K1/8

#2

8 + 3

4849 The Sushkov Theme 1999
3256 David Shire Selected Chess Problems 2001
268 Chess Life 2004
136 Problem Observer 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Qd4#
    • 1...Rc3
      • 2.Qd4#
    • 1...Ra5
      • 2.Qd4#
    • 1...Rb5
      • 2.Qd4#
    • 1...Rd5
      • 2.Qe3#
    • 1...Rxe5
      • 2.Sd6#
      • 2.Qd4#
    • 1...Rxc6
      • 2.Qd4#
    • 1...Bf4
      • 2.Qd3#
    • 1...Bxe5
      • 2.Sg5#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.Qd4#
      • 1...Bxe5
        • 2.Sg5#
      • 1...Bf2!
    • 1.Bb8?
      • threat
        • 2.Sg5#
      • 1...Rxe5
        • 2.Sd6#
      • 1...Bf4
        • 2.Qd3#
      • 1...Bh4!
    • 1.Qd3+?
      • 1...Kf4
        • 2.Qf3#
        • 2.Qd4#
      • 1...Kxd3!
  • Keys
    • 1.Rh5!
      • threat
        • 2.Sd6#
      • 1...Rxc6
        • 2.Qd4#
      • 1...Bxe5
        • 2.Sg5#
      • 1...Rd5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(c);::QAR1(A)
    • R(c);SBLOCK::QAR1(A)
    • R(c);XP(F)::QAR1(A)
    • B(a);SBLOCK::QAB1(A)
    • B(a);SBLOCK,XP(E)::S(H)
  • Tries
    • Try
      • B(G);XR(c)
      • Threat
        • QAR1(A)
      • Vars
        • B(a);SBLOCK,XP(E)::S(H)
      • Refutation
        • B(a);
    • Try
      • B(G);
      • Threat
        • S(H)
      • Vars
        • R(c);SBLOCK,XP(E)::S(H)
        • B(a);SBLOCK::QAB1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P_SPINB(a),S_FLIGHT,XQ(A)
  • Actual
    • R(C);
    • Threat
      • S(H)
    • Vars
      • R(c);XP(F)::QAR1(A)
      • B(a);SBLOCK,XP(E)::S(H)
      • R(c);SBLOCK::QAR1(A)
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