MESON Chess Problem Database

Problem Display
PID: 15558 (2n1r3/2KP4/3P4/1Rp2B2/PBkN1N1Q/1p6/4P3/1n1Rb3 w - - 0 1)

Popov, Valery

2nd HM., Shakhmaty, 1985

2n1r3/2KP4/3P4/1Rp2B2/PBkN1N1Q/1p6/4P3/1n1Rb3

#2

12 + 7

721 Variantim 1990
56 The Problemist 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Bxe6#
    • 1...Rd8
      • 2.Be6#
    • 1...Rf8
      • 2.Be6#
    • 1...Rg8
      • 2.Be6#
    • 1...Rh8
      • 2.Be6#
    • 1...cxd4
      • 2.Bd3#
  • Tries
    • 1.Sde6?
      • threat
        • 2.Bd3#
      • 1...Rxe6
        • 2.Bxe6#
      • 1...Bxb4
        • 2.Sd5#
      • 1...cxb4
        • 2.Rc5#
      • 1...b2!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Rxc5#
      • 1...Kxd5
        • 2.Rxc5#
      • 1...Bxb4
        • 2.Se6#
      • 1...cxb4
        • 2.Bd3#
      • 1...cxd4
        • 2.Bd3#
        • 2.Rxd4#
        • 2.Rc5#
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(g);N_GUARD::B(I),XR(g)
    • R(g);N_GUARD::B(I)
    • P(e);SBLOCK,XS(E)::B(I)
  • Tries
    • Try
      • S(E);
      • Threat
        • B(I)
      • Vars
        • R(g);OGATE,XS(E)::B(I),XR(g)
        • B(b);N_GUARD,XB(D)::QAR(G)+S(F)
        • P(e);SBLOCK,XB(D)::R1(H)
      • Refutation
        • P(c);
  • Actual
    • S(F);
    • Threat
      • R1(H),XP(e)
    • Vars
      • K(d);P_SPINP(e),S_FLIGHT,XS(F)::R1(H),XP(e)
      • B(b);N_GUARD,XB(D)::QAR(G)+S(E)
      • P(e);XB(D)::B(I)
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