MESON Chess Problem Database

Problem Display
PID: 18620 (1Q6/r1r2p2/5P2/5PNp/pR6/1bB3kp/1R5N/2K2B2 w - - 0 1)

Barnes, Barry Peter

Vaughan, Colin V

5th HM., Die Schwalbe, 1957

1Q6/r1r2p2/5P2/5PNp/pR6/1bB3kp/1R5N/2K2B2

#2

10 + 8

3976 FIDE Album (1956-1958) 1961
4199 Barnes about Chess Problems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Qxc7#
    • 1...h4
      • 2.Rg4#
  • Tries
    • 1.Sxh3?
      • threat
        • 2.Qg8#
      • 1...Bc2
        • 2.Be5#
      • 1...Bc4
        • 2.Be1#
      • 1...Ra8
        • 2.Qxc7#
      • 1...Bd1!
  • Keys
    • 1.Sgf3!
      • threat
        • 2.Qg8#
      • 1...Bc2
        • 2.Be1#
      • 1...Bc4
        • 2.Be5#
      • 1...Ra8
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(f);N_GUARD::QAB(J),XR(g)
    • P(e);N_GUARD::R1(F)
  • Tries
    • Try
      • S(H);XP(c)
      • Threat
        • QAR(J)
      • Vars
        • B(a);N_PINB(E)::B(E)
        • R(f);N_GUARD::QAB(J),XR(g)
      • Refutation
        • B(a);
  • Actual
    • S(H);
    • Threat
      • QAR(J)
    • Vars
      • B(a);N_PINB(E)::B(E)
      • R(f);N_GUARD::QAB(J),XR(g)
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