MESON Chess Problem Database

Problem Display
PID: 101753 (N4n2/1KQp4/8/3k2N1/1p5r/3P4/3P4/4rBb1 w - - 0 1)

Bylevski, Aleksandr

diagrammes, 1989

N4n2/1KQp4/8/3k2N1/1p5r/3P4/3P4/4rBb1

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd6#
    • 1...Rd4
      • 2.Sb6#
  • Tries
    • 1.Sb6+?
      • 1...Kd4
        • 2.Sf3#
        • 2.Qd6#
      • 1...Bxb6!
  • Keys
    • 1.d4!
      • threat
        • 2.Qc5#
      • 1...Kxd4
        • 2.Qd6#
      • 1...Rxd4
        • 2.Sb6#
      • 1...Bxd4
        • 2.Bc4#
      • 1...Rc1
        • 2.Qe5#
      • 1...Se6
        • 2.Qxd7#
      • 1...d6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(e);P-FLIGHT::QAR2(F)
    • R(d);SBLOCK,S_CUTB(b)::S(G)
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • B(b);XS(G)
  • Actual
    • P(C);
    • Threat
      • QAR1(F)
    • Vars
      • K(e);P-FLIGHT,XP(C)::QAR2(F)
      • R(d);SBLOCK,XP(C)::S(G)
      • B(b);SBLOCK,XP(C)::B(A)
      • R(a);N_GUARD::QAR1(F)
      • S(g);N_GUARD::QAR2(F),XP(f)
      • P(f);SBLOCK::QAB1(F)
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