MESON Chess Problem Database

Problem Display
PID: 237327 (7Q/5Np1/nK1P1pB1/8/1pPkr1r1/1R2N3/8/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Schach-Aktiv, 1996

7Q/5Np1/nK1P1pB1/8/1pPkr1r1/1R2N3/8/8

#2

8 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ref4
      • 2.Rd3#
    • 1...Re5
      • 2.Rd3#
    • 1...Re6
      • 2.Rd3#
    • 1...Re7
      • 2.Rd3#
    • 1...Re8
      • 2.Rd3#
  • Tries
    • 1.Qh1?
      • threat
        • 2.Qa1#
        • 2.Qd1#
      • 1...Rxe3
        • 2.Qd5#
      • 1...Rg1
        • 2.Qxe4#
      • 1...Sc5
        • 2.Qa1#
      • 1...Rg2!
    • 1.Qh5?
      • threat
        • 2.Qd5#
      • 1...Re5
        • 2.Rd3#
      • 1...Rg5
        • 2.Qd1#
      • 1...Sc7
        • 2.Qc5#
      • 1...f5!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qd5#
      • 1...Re5
        • 2.Rd3#
      • 1...Rg5
        • 2.Qxe4#
      • 1...Sc7
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(c);::R1(A)
    • R(c);P_PINP(E)::R1(A)
  • Tries
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATE,XS(B)::QAR1(H)
        • R(d);N_GUARD::QAR1(H),XR(c)
        • S(e);::QAB(H)
      • Refutation
        • R(d);
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • R(c);::R1(A)
        • R(d);OGATE::QAR(H)
        • S(e);N_GUARD::QAB1(H)
      • Refutation
        • P(f);
  • Actual
    • Q(H);
    • Threat
      • QAR1(H)
    • Vars
      • R(c);::R1(A)
      • R(d);N_GUARD::QAR1(H),XR(c)
      • S(e);OGATE::QAB(H)
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