MESON Chess Problem Database

Problem Display
PID: 151691 (4r3/b2r2q1/4n3/6p1/2p2P2/1nQ1pp1B/bKPpk2N/3N1R2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Suomen Shakki, 1948

4r3/b2r2q1/4n3/6p1/2p2P2/1nQ1pp1B/bKPpk2N/3N1R2

#2

8 + 13

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc3+
      • 2.Sxc3#
    • 1...Rd4
      • 2.Qxe3#
    • 1...Sbd4
      • 2.Qxe3#
    • 1...Sed4
      • 2.Qxc4#
    • 1...f2
      • 2.Bg4#
  • Tries
    • 1.Sxf3?
      • threat
        • 2.Sg1#
      • 1...Qxc3+
        • 2.Sxc3#
      • 1...gxf4!
  • Keys
    • 1.Bg4!
      • threat
        • 2.Bxf3#
      • 1...Qxc3+
        • 2.Sxc3#
      • 1...Sbd4
        • 2.Qxe3#
      • 1...Sed4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • Q(l);CHECK,XQ(F)::S(A),XQ(l)
    • R(k);N_PINQ(F)::QAR1(F),XP(e)
    • S(d);N_PINQ(F)::QAR1(F),XP(e)
    • S(i);N_PINQ(F)::QAB(F),XP(g)
    • P(f);OGATEB::B(G)
  • Tries
    • Try
      • S(E);XP(f)
      • Threat
        • S(E)
      • Vars
        • Q(l);CHECK,XQ(F)::S(A),XQ(l)
      • Refutation
        • P(h);XP(H)
  • Actual
    • B(G);P_PINP(f)
    • Threat
      • B(G),XP(f)
    • Vars
      • Q(l);CHECK,XQ(F)::S(A),XQ(l)
      • S(d);N_PINQ(F)::QAR1(F),XP(e)
      • S(i);N_PINQ(F)::QAB(F),XP(g)
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Developed and maintained by Brian Stephenson.
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