MESON Chess Problem Database

Problem Display
PID: 16783 (2K3kr/4Q3/p1pP4/r4PP1/2R5/1B6/3q4/6R1 w - - 0 1)

Sheppard, Charles William

HM., Chess Correspondent, 1943

2K3kr/4Q3/p1pP4/r4PP1/2R5/1B6/3q4/6R1

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg5
      • 2.Rxg5#
      • 2.Rc5#
    • 1...Qf2
      • 2.Rc5#
    • 1...Qh2
      • 2.Rc5#
    • 1...Ra1
      • 2.Rd4#
    • 1...Ra2
      • 2.Rd4#
  • Tries
    • 1.Qf8+?
      • 1...Kh7
        • 2.Rh4#
        • 2.g6#
      • 1...Kxf8!
  • Keys
    • 1.f6!
      • threat
        • 2.Qg7#
      • 1...Qxg5
        • 2.Rc5#
      • 1...Rxg5
        • 2.Rd4#
      • 1...Rh7
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(a);N_GUARD::B(B)+R(C)
    • R(b);N_GUARD::B(B)+R(C)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • K(e);P-FLIGHT,XQ(G)
  • Actual
    • P(D);
    • Threat
      • QAR1(G)
    • Vars
      • Q(a);N_GUARD,P_SPINQ(a),XP(E)::B(B)+R(C)
      • R(b);N_GUARD,P_SPINR(b),XP(E)::B(B)+R(C)
      • R(f);SBLOCK::QAR2(G)
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