MESON Chess Problem Database

Problem Display
PID: 82204 (QB1R4/1N1b1R2/B3r3/P3p1N1/6p1/b1P1k3/8/4K3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Arbeiter Zeitung, 1977

QB1R4/1N1b1R2/B3r3/P3p1N1/6p1/b1P1k3/8/4K3

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Rd3#
    • 1...Bc6
      • 2.Rd3#
    • 1...Bc8
      • 2.Rd3#
    • 1...Be8
      • 2.Rd3#
    • 1...g3
      • 2.Rf3#
    • 1...e4
      • 2.Bf4#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Qe4#
      • 1...Bc6
        • 2.Rd3#
      • 1...e4
        • 2.Bf4#
      • 1...Rc6!
    • 1.Ba7+?
      • 1...Bc5
        • 2.Bxc5#
      • 1...Rb6!
    • 1.Qa7+?
      • 1...Bc5
        • 2.Qxc5#
      • 1...Rb6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qe4#
      • 1...Bc6
        • 2.Sc4#
      • 1...e4
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • B(f);OGATE::R1(J)
    • P(c);N_GUARD::R1(G)
    • P(d);OGATE::B(I)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • B(f);OGATE::R1(J)
        • P(d);OGATE::B(I)
      • Refutation
        • R(e);
    • Try
      • B(I);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::B(I),XB(a)
      • Refutation
        • R(e);P_SPINR(e)
    • Try
      • Q(H);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAB(H),XB(a)
      • Refutation
        • R(e);P_SPINR(e)
  • Actual
    • S(F);
    • Threat
      • QAR1(H)
    • Vars
      • B(f);::S(F)
      • P(d);::S(F)
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