MESON Chess Problem Database

Problem Display
PID: 237256 (2nQ2n1/1pppp3/3k3q/br1P4/3P1r2/1B1N3p/K3R3/2R5 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schweizerische Schachzeitung, 2011

2nQ2n1/1pppp3/3k3q/br1P4/3P1r2/1B1N3p/K3R3/2R5

#2

8 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qg5
      • 2.Re6#
    • 1...Qg7
      • 2.Re6#
    • 1...Qf8
      • 2.Re6#
    • 1...Qh4
      • 2.Re6#
    • 1...Qh5
      • 2.Re6#
    • 1...Qe6
      • 2.Rxe6#
    • 1...Qh7
      • 2.Re6#
    • 1...Qh8
      • 2.Re6#
    • 1...Rc5
      • 2.dxc5#
    • 1...Rb6
      • 2.Qxc7#
    • 1...Be1
      • 2.Qxc7#
    • 1...Bd2
      • 2.Qxc7#
    • 1...Bb4
      • 2.Qxc7#
    • 1...Sb6
      • 2.Qxc7#
    • 1...Sf6
      • 2.Re6#
    • 1...b6
      • 2.Rc6#
      • 2.Qxc7#
    • 1...e5
      • 2.dxe5#
  • Tries
    • 1.Se5?
      • threat
        • 2.Qxd7#
      • 1...Sb6
        • 2.Qxc7#
      • 1...Sf6
        • 2.Sf7#
      • 1...Qe6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qxd7#
      • 1...Rxc5
        • 2.dxc5#
      • 1...Qe6
        • 2.Rxe6#
      • 1...Sb6
        • 2.Sxb7#
      • 1...Sf6
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 12
  • Sets
    • Q(f);N_GUARD::R1(C)
    • Q(f);N_GUARD::R1(C),XQ(f)
    • R(d);OGATE::P(F),XR(d)
    • R(d);S_CUTB(c)::QAB1(H),XP(h)
    • B(c);N_GUARD::QAB1(H),XP(h)
    • S(k);S_CUTB(c)::QAB1(H),XP(h)
    • S(l);S_CUTQ(f)::R1(C)
    • P(j);OGATE::P(F),XP(j)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(H),XP(i)
      • Vars
        • S(k);S_CUTB(c)::QAB1(H),XP(h)
        • S(l);S_CUTR(b)::S(E)
      • Refutation
        • Q(f);
  • Actual
    • S(E);
    • Threat
      • QAR1(H),XP(i)
    • Vars
      • R(d);OGATE,XS(E)::P(F),XR(d)
      • Q(f);N_GUARD::R1(C),XQ(f)
      • S(k);S_CUTR(d)::S(E),XP(g)
      • S(l);S_CUTQ(f)::R1(C)
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Developed and maintained by Brian Stephenson.
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