MESON Chess Problem Database

Problem Display
PID: 142873 (1B1N4/4pr2/r1P5/pP1k1n2/P3p3/2Q1b2B/8/K7 w - - 0 1)

Dubernat, R

2nd Mention, La Cle 05. Beginners' Ty., 1971

1B1N4/4pr2/r1P5/pP1k1n2/P3p3/2Q1b2B/8/K7

#2

8 + 8

274 diagrammes 1973

SOLUTION

  • SOUND
  • Sets
    • 1...Sg3
      • 2.Be6#
    • 1...Sh4
      • 2.Be6#
    • 1...Sd6
      • 2.Be6#
    • 1...Sh6
      • 2.Be6#
  • Tries
    • 1.Qb3+?
      • 1...Kd4
        • 2.Se6#
      • 1...Kc5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qb3#
      • 1...Kxe6
        • 2.Qe5#
      • 1...Rxc6
        • 2.Qxc6#
      • 1...Bd4
        • 2.Sf4#
      • 1...Sd4
        • 2.Qc5#
      • 1...Sd6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(e);OGATE::B(C)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);P-FLIGHT::S(H)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • S(H);
    • Threat
      • QAB(B)
    • Vars
      • K(d);P_SPINS(e),S_FLIGHT,XS(H)::QAR1(B)
      • R(f);OGATE,XP(F)::QAB1(B),XR(f)
      • B(a);N_GUARD,P_PINQ(B)::S(H)
      • S(e);S_CUTB(a)::QAR1(B)
      • S(e);SBLOCK::S(H)
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