MESON Chess Problem Database

Problem Display
PID: 187188 (8/8/4Q3/1BBPp3/3RP3/1nkP3P/Pp1p4/1rbK4 w - - 0 1)

Dyachuk, Vasyl Vasilovich

1st HM., Schach-Aktiv, 2012

8/8/4Q3/1BBPp3/3RP3/1nkP3P/Pp1p4/1rbK4

#2

10 + 7

15511 harmonie-aktiv 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Ra4?
      • 1...Sxc5
        • 2.Qxe5#
      • 1...Sa1
        • 2.Qxe5#
      • 1...Sd4
        • 2.Bb4#
      • 1...Sa5
        • 2.Qxe5#
      • 1...Ra1!
    • 1.Qb6?
      • threat
        • 2.Bb4#
      • 1...Sxd4
        • 2.Qa5#
      • 1...Sxc5
        • 2.Qxc5#
      • 1...exd4!
    • 1.d6?
      • threat
        • 2.Qxb3#
        • 2.Qc4#
      • 1...Sxd4
        • 2.Qc4#
      • 1...Sxc5
        • 2.Qc4#
      • 1...Sa1
        • 2.Qc4#
      • 1...Sa5!
  • Keys
    • 1.Qxe5!
      • threat
        • 2.Bb4#
      • 1...Sxd4
        • 2.Qxd4#
      • 1...Sxc5
        • 2.Ra4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Vars
        • S(e);N_GUARD,XB(H)::QAB(J),XP(g)
        • S(e);N_GUARD::QAB(J),XP(g)
        • S(e);SBLOCK::B(H)
      • Refutation
        • R(a);
    • Try
      • Q(J);
      • Threat
        • B(H)
      • Vars
        • S(e);N_GUARD,XR(E)::QAB(J)
        • S(e);OGATE,XB(H)::QAR2(J),XS(e)
      • Refutation
        • P(g);XR(E)
    • Try
      • P(I);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);XR(E)::QAR1(J)
        • S(e);XB(H)::QAR1(J)
        • S(e);::QAR1(J)
      • Refutation
        • S(e);
  • Actual
    • Q(J);XP(g)
    • Threat
      • B(H)
    • Vars
      • S(e);OGATE,P_SPINS(e),XR(E)::QAB1(J),XS(e)
      • S(e);N_GUARD,XB(H)::QAB(J)+R(E)
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