MESON Chess Problem Database

Problem Display
PID: 157768 (8/3p1r2/8/b1Q4p/4k3/1N2rqnN/1PP1p1n1/1KB4B w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schach, 1956

8/3p1r2/8/b1Q4p/4k3/1N2rqnN/1PP1p1n1/1KB4B

#2

8 + 10

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb3
      • 2.Sg5#
    • 1...Rc3
      • 2.Sd2#
      • 2.Sg5#
    • 1...Rd3
      • 2.Sg5#
    • 1...Rf4
      • 2.Sg5#
    • 1...Rf5
      • 2.Qd4#
    • 1...Bd2
      • 2.Sxd2#
    • 1...Bb6
      • 2.Sd2#
    • 1...Bc7
      • 2.Sd2#
    • 1...Bd8
      • 2.Sd2#
    • 1...Sf4
      • 2.Sf2#
      • 2.Sg5#
  • Keys
    • 1.c4!
      • threat
        • 2.Qd5#
      • 1...Kd3
        • 2.Qd4#
      • 1...Qf5
        • 2.Qxe3#
      • 1...d5
        • 2.Qxd5#
      • 1...Rd3
        • 2.Sg5#
      • 1...Rf5
        • 2.Qd4#
      • 1...Sf4
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(c);P_PINP(D),XS(F)::S(G)
    • R(c);::S(G)
    • R(j);SBLOCK::S(G)
    • R(j);SBLOCK::QAR1(H)
    • B(g);N_GUARD::S(F),XB(g)
    • B(g);N_GUARD::S(F)
  • Actual
    • P(E);
    • Threat
      • QAB1(H)
    • Vars
      • K(f);S_FLIGHT::QAR1(H)
      • Q(d);N_GUARD,P_SPINS(b),SBLOCK::QAR1(H),XR(c)
      • P(i);::QAB1(H),XP(i)
      • R(c);SBLOCK::S(G)
      • R(j);SBLOCK::QAR1(H)
      • S(b);P_SPINQ(d),SBLOCK::S(G)
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Developed and maintained by Brian Stephenson.
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