MESON Chess Problem Database

Problem Display
PID: 233241 (6Q1/5rb1/1n6/6B1/4R3/3k4/4R3/1K1N4 w - - 0 1)

Muller, Dieter

Freie Presse, 1967

6Q1/5rb1/1n6/6B1/4R3/3k4/4R3/1K1N4

#2

6 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Qb3#
  • Tries
    • 1.Qc8?
      • threat
        • 2.Qc2#
      • 1...Rc7
        • 2.Qh3#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sxc8!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Sb2#
        • 2.Sf2#
      • 1...Rxf6
        • 2.Qb3#
      • 1...Bxf6
        • 2.Qg3#
      • 1...Sa4
        • 2.Sf2#
      • 1...Sc4
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE::QAR2(F)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • R(c);N_GUARD::QAR(F)
        • B(d);N_GUARD::QAR1(F),XB(d)
        • S(b);N_GUARD::QAB1(F),XS(b)
      • Refutation
        • S(b);XQ(F)
  • Actual
    • B(E);
    • Threat
      • DUALS(2)
    • Vars
      • R(c);OGATE,XB(E)::QAR2(F)
      • B(d);OGATE,XB(E)::QAR(F)
      • S(b);::S(B)
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