MESON Chess Problem Database

Problem Display
PID: 174828 (4Q3/3N1p2/8/7r/p1PkN3/4p3/1P3r1b/KBR5 w - - 0 1)

Barth, Michael

Freie Presse, 1997

4Q3/3N1p2/8/7r/p1PkN3/4p3/1P3r1b/KBR5

#2

8 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sg5?
      • threat
        • 2.Qe4#
      • 1...Rf4
        • 2.Qe5#
      • 1...Be5
        • 2.Qxe5#
      • 1...f5
        • 2.Se6#
      • 1...Rh4!
    • 1.Sd6?
      • threat
        • 2.Qe4#
      • 1...Rh4
        • 2.Sb5#
      • 1...Rf4
        • 2.Rd1#
      • 1...Be5
        • 2.Sb5#
      • 1...f5
        • 2.Sb5#
      • 1...Re5!
  • Keys
    • 1.Sg3!
      • threat
        • 2.Qe4#
      • 1...Rh4
        • 2.Qe5#
      • 1...Rf4
        • 2.Se2#
      • 1...Re5
        • 2.Qxe5#
      • 1...f5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • R(a);S_CUTB(b)::QAB1(H)
        • B(b);N_GUARD::QAB1(H),XB(b)
        • P(g);N_GUARD::S(F)
      • Refutation
        • R(f);
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • R(f);N_GUARD::S(F)
        • R(a);N_GUARD::R(C)
        • B(b);S_CUTR(f)::S(F)
        • P(g);S_CUTR(f)::S(F)
      • Refutation
        • R(f);
  • Actual
    • S(F);
    • Threat
      • QAR1(H)
    • Vars
      • R(f);N_GUARD::QAB1(H)
      • R(a);N_GUARD::S(F)
      • R(f);N_GUARD::QAB1(H),XR(f)
      • P(g);S_CUTR(f)::QAB1(H)
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