MESON Chess Problem Database

Problem Display
PID: 7360 (4Q2K/7p/2p1N3/3b2p1/RBN1kpP1/1R5p/4r3/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

1st HM., StrateGems, 1999

4Q2K/7p/2p1N3/3b2p1/RBN1kpP1/1R5p/4r3/8

#2

8 + 8

145 StrateGems 2000

SOLUTION

  • SOUND
  • Sets
    • 1...h5
      • 2.Qg6#
    • 1...h6
      • 2.Qg6#
  • Tries
    • 1.Bc5?
      • threat
        • 2.Sxg5#
      • 1...Bxc4
        • 2.Sc7#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...f3!
    • 1.Qd7?
      • threat
        • 2.Qxh7#
      • 1...Bxc4
        • 2.Qd4#
      • 1...Bxe6
        • 2.Qd3#
      • 1...h5
        • 2.Qh7#
      • 1...h6
        • 2.Qh7#
      • 1...Re3!
    • 1.Qb8?
      • threat
        • 2.Qe5#
      • 1...Re3
        • 2.Sd2#
      • 1...Bxc4!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Sd2#
      • 1...Bxc4
        • 2.Qxc6#
      • 1...Bxe6
        • 2.Sb6#
      • 1...Rd2
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • P(h);N_GUARD::QAB(G)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR(G)+S(F),DCHECK,XP(f)
      • Vars
        • B(e);N_GUARD,P_SPINB(e),XS(D)::QAR(G)+S(F)
        • B(e);OGATE,P_SPINB(e),XS(F)::QAR2(G),XB(e)
      • Refutation
        • P(d);
    • Try
      • Q(G);
      • Threat
        • QAB(G),XP(h)
      • Vars
        • B(e);OGATE,XS(D)::QAR1(G)
        • B(e);OGATE,XS(F)::QAB1(G)
        • P(h);::QAB(G)
      • Refutation
        • R(a);
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • R(a);N_GUARD::S(D)
      • Refutation
        • B(e);XS(D)
  • Actual
    • B(C);
    • Threat
      • R(B)+S(D),DCHECK
    • Vars
      • B(e);OGATEB,P_SPINB(e),XS(D)::QAB(G),XP(g)
      • B(e);N_GUARD,P_SPINB(e),XS(F)::R(B)+S(D)
      • R(a);::R(B)+S(D),DCHECK,XR(a)
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