MESON Chess Problem Database

Problem Display
PID: 88337 (BB5b/Q7/4R3/rbPP2NR/P2kppp1/1P1pr3/3Kn3/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

The Problemist, 1993

BB5b/Q7/4R3/rbPP2NR/P2kppp1/1P1pr3/3Kn3/8

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Rxe4#
    • 1...Rg3
      • 2.Rxe4#
    • 1...Rh3
      • 2.Rxe4#
    • 1...Be5
      • 2.Bxe5#
  • Tries
    • 1.Rc6?
      • threat
        • 2.Se6#
      • 1...Kxd5
        • 2.Qd7#
      • 1...Be5!
    • 1.Rd6?
      • threat
        • 2.Se6#
      • 1...Ke5
        • 2.Sf3#
      • 1...Bd7!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Se6#
      • 1...Kxc5
        • 2.Rxb5#
      • 1...Bd7
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(c);N_GUARD::R1(H),XP(e)
    • B(j);N_GUARD::B(K),XB(j)
  • Tries
    • Try
      • R(H);
      • Threat
        • S(F)
      • Vars
        • K(d);OGATEB,P-FLIGHT,XP(E)::QAR2(I)
      • Refutation
        • B(j);
    • Try
      • R(H);
      • Threat
        • S(F)
      • Vars
        • K(d);S_FLIGHT::R(G)+S(F),DCHECK
      • Refutation
        • B(i);
  • Actual
    • R(H);
    • Threat
      • S(F)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XP(D)::QAB(I)+R(H),DCHECK,XB(i)
      • B(i);OGATE::R(H)
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