MESON Chess Problem Database

Problem Display
PID: 15412 (2b1Q3/p5N1/RbNpP3/pp1k4/3B1P2/1P2pK2/R3P3/8 w - - 0 1)

Dombrovskis, Alfreds A

Vasilenko, Anatoly Grigorovich

2nd Prize, Shakhmaty (Riga), 1983

2b1Q3/p5N1/RbNpP3/pp1k4/3B1P2/1P2pK2/R3P3/8

#2

11 + 8

3748 FIDE Album (1983-1985) 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Qh5#
    • 1...Bc7
      • 2.Qh5#
  • Tries
    • 1.Bxe3?
      • threat
        • 2.Se7#
      • 1...Bxe3
        • 2.Qh5#
      • 1...Bd8
        • 2.Rd2#
      • 1...Bd4!
    • 1.Rc2?
      • threat
        • 2.Qh5#
      • 1...Bxd4
        • 2.Se7#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Bd8!
    • 1.Rxb6?
      • threat
        • 2.Rxb5#
        • 2.Qh5#
      • 1...Bxe6
        • 2.Rxb5#
        • 2.Qxe6#
      • 1...Ba6
        • 2.Qh5#
      • 1...Bd7
        • 2.Qh5#
      • 1...b4
        • 2.Rxa5#
        • 2.Rb5#
        • 2.Qh5#
      • 1...a6
        • 2.Qh5#
      • 1...axb6!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Se7#
      • 1...Bxd4
        • 2.Qh5#
      • 1...exd2
        • 2.e4#
      • 1...Bd8
        • 2.Bxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(e);::QAR(K)
  • Tries
    • Try
      • B(E);XP(a)
      • Threat
        • S(H)
      • Vars
        • B(e);XB(E)::QAR(K)
        • B(e);N_GUARD::R(A)
      • Refutation
        • B(e);
    • Try
      • R(A);
      • Threat
        • QAR(K)
      • Vars
        • B(e);SBLOCK,XB(E)::S(H)
        • B(h);OGATE,XP(I)::QAB1(K),XB(h)
      • Refutation
        • B(e);
    • Try
      • R(G);XB(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(h);::QAR(K)
        • P(g);::QAR(K)
      • Refutation
        • P(g);XR(G)
  • Actual
    • R(A);
    • Threat
      • S(H)
    • Vars
      • B(e);P_SPINB(e),XB(E)::QAR(K)
      • P(a);OGATE,XR(A)::P(B)
      • B(e);N_GUARD::R(A)+B(E),XP(a)
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