MESON Chess Problem Database

Problem Display
PID: 137827 (5b2/P4Np1/5PK1/2ppN1P1/4kpP1/1BQ5/1p1nPR2/1qBR1n1b w - - 0 1)

Dyachuk, Vasyl Vasilovich

1st HM., Freie Presse, 1998

5b2/P4Np1/5PK1/2ppN1P1/4kpP1/1BQ5/1p1nPR2/1qBR1n1b

#2

13 + 11

14503 Problemschach-Jahrbuch (1999) 2000
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Bc2#
      • 2.Qd3#
    • 1...Qc2
      • 2.Bxc2#
    • 1...Qd3
      • 2.Qxd3#
    • 1...Qa1
      • 2.Bc2#
      • 2.Qd3#
    • 1...Qxc1
      • 2.Qd3#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Sxb3
      • 2.Rxf4#
    • 1...Sf3
      • 2.Bxd5#
    • 1...Sc4
      • 2.Rxf4#
    • 1...d4
      • 2.a8Q#
      • 2.a8B#
  • Keys
    • 1.Sd7!
      • threat
        • 2.Qe5#
      • 1...gxf6
        • 2.Sxf6#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Sf3
        • 2.Bxd5#
      • 1...Sc4
        • 2.Rxf4#
      • 1...d4
        • 2.a8Q#
        • 2.a8B#

This anticipates 46540(2002)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(a);N_GUARD::B(E),XQ(a)
    • Q(a);N_GUARD::QAB1(F),XQ(a)
    • Q(a);N_GUARD,XB(A)::QAB1(F)
    • B(k);N_GUARD::S(M),XB(k)
    • S(e);XB(E)::R1(D),XP(g)
    • S(e);::B(E),XP(i)
    • S(e);::R1(D),XP(g)
    • P(i);::P=Q
  • Actual
    • S(H);
    • Threat
      • QAR1(F)
    • Vars
      • P(j);XP(J)::S(H),XP(j)
      • B(k);N_GUARD::S(M),XB(k)
      • S(e);::B(E),XP(i)
      • S(e);::R1(D),XP(g)
      • P(i);::P=Q
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