MESON Chess Problem Database

Problem Display
PID: 137785 (8/6p1/B6q/1R1NP2p/N3k3/2P2RB1/5PK1/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

3rd Prize, Moscow Ty., 2001

8/6p1/B6q/1R1NP2p/N3k3/2P2RB1/5PK1/8

#2

10 + 4

23 Die Schwalbe 2010
15174 FIDE Album (2001-2003) 2011
145 StrateGems 2016

SOLUTION

  • SOUND
  • Sets
    • 1...g6
      • 2.Sf6#
  • Tries
    • 1.Sf6+?
      • 1...gxf6
        • 2.Bb7#
      • 1...Qxf6!
    • 1.Se7?
      • threat
        • 2.Sc5#
        • 2.Rb4#
      • 1...Qxa6
        • 2.Sc5#
        • 2.Re3#
      • 1...Qe3
        • 2.Rxe3#
      • 1...Qd2
        • 2.Sc5#
      • 1...Qf4
        • 2.Bb7#
      • 1...Qc6
        • 2.Re3#
      • 1...Qd6
        • 2.Re3#
      • 1...Qe6
        • 2.Sc5#
        • 2.Re3#
      • 1...Qb6!
    • 1.Bb7?
      • threat
        • 2.Sc5#
        • 2.Sf6#
        • 2.Rb4#
      • 1...Qe3
        • 2.Sb4#
      • 1...Qf4
        • 2.Se7#
      • 1...Qd2
        • 2.Sc5#
        • 2.Sf6#
      • 1...Qa6
        • 2.Sc5#
        • 2.Sf6#
      • 1...Qb6
        • 2.Sdxb6#
        • 2.Sf6#
      • 1...Qd6
        • 2.Sf6#
      • 1...Qf6
        • 2.Sc5#
        • 2.Sxf6#
        • 2.Rb4#
      • 1...Qc6!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Sc5#
      • 1...Qf4
        • 2.Rxf4#
      • 1...Qe3
        • 2.Bb7#
      • 1...Qb6
        • 2.Rf4#
      • 1...Qc6
        • 2.Rf4#
      • 1...Qd6
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(d);N_GUARD,S_CUTQ(c)::S(H)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • P(d);XS(H)::B(J)
      • Refutation
        • Q(c);XS(H)
    • Try
      • S(H);
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);N_GUARD::R1(D),XQ(c)
        • Q(c);P_PINP(A)::S(F)
        • Q(c);N_GUARD::B(J)
        • Q(c);N_GUARD::R1(D)
      • Refutation
        • Q(c);
    • Try
      • B(J);
      • Threat
        • DUALS(3)
      • Vars
        • Q(c);N_GUARD::B(J)+S(H)
        • Q(c);::B(J)+S(H),DCHECK
      • Refutation
        • Q(c);
  • Actual
    • S(H);
    • Threat
      • S(F)
    • Vars
      • Q(c);N_GUARD::R1(D),XQ(c)
      • Q(c);N_GUARD::B(J)
      • Q(c);N_GUARD::R1(D)
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