MESON Chess Problem Database

Problem Display
PID: 95385 (5r2/2QB4/8/B7/RN3p2/Pk1p1r2/8/K4b2 w - - 0 1)

Linss, Torsten

Sachsische Zeitung, 1985

5r2/2QB4/8/B7/RN3p2/Pk1p1r2/8/K4b2

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Qc2#
  • Tries
    • 1.Sa2?
      • threat
        • 2.Sc1#
        • 2.Qc3#
        • 2.Qc4#
      • 1...Rc8
        • 2.Sc1#
      • 1...d2!
    • 1.Sc2?
      • threat
        • 2.Sd4#
        • 2.Rb4#
        • 2.Qc3#
        • 2.Qc4#
      • 1...Rb8
        • 2.Sd4#
        • 2.Qc3#
        • 2.Qc4#
      • 1...Rc8
        • 2.Sd4#
        • 2.Rb4#
      • 1...d2
        • 2.Sd4#
        • 2.Rb4#
      • 1...dxc2!
    • 1.Bb5?
      • threat
        • 2.Qc4#
      • 1...d2
        • 2.Qc2#
      • 1...Rc8!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Sc1#
        • 2.Qc3#
        • 2.Qc4#
      • 1...Rxd3
        • 2.Qc4#
      • 1...Bxd3
        • 2.Qc3#
      • 1...Rc8
        • 2.Sc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(c);N_GUARD::QAB1(F)
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(3)
      • Vars
        • R(f);::S(D)
      • Refutation
        • P(c);
    • Try
      • S(D);
      • Threat
        • DUALS(4)
      • Refutation
        • P(c);XS(D)
    • Try
      • B(G);
      • Threat
        • QAB1(F)
      • Vars
        • P(c);N_GUARD::QAB1(F)
      • Refutation
        • R(f);
  • Actual
    • S(D);XP(c)
    • Threat
      • DUALS(3)
    • Vars
      • R(d);XS(D)::QAB1(F)
      • B(a);XS(D)::QAR1(F)
      • R(f);::S(D)
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