MESON Chess Problem Database

Problem Display
PID: 200813 (1B1rR3/5p1b/1pp1P3/1N1k1n1Q/1PRPr1B1/3PP3/2K5/4bN2 w - - 0 1)

Sarkits, Anatoly L

Variantim, 1998

1B1rR3/5p1b/1pp1P3/1N1k1n1Q/1PRPr1B1/3PP3/2K5/4bN2

#2

13 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3
      • 2.Sxe3#
    • 1...Rxd4
      • 2.Rxd4#
    • 1...Rd6
      • 2.Sc7#
    • 1...Bf2
      • 2.Sc3#
    • 1...Bc3
      • 2.Sxc3#
    • 1...Bg3
      • 2.Sc3#
    • 1...Bh4
      • 2.Sc3#
    • 1...fxe6
      • 2.Rxd8#
  • Tries
    • 1.Qxf5+?
      • 1...Re5
        • 2.Bf3#
        • 2.Rxd8#
        • 2.Qxe5#
        • 2.e4#
      • 1...Bxf5!
    • 1.dxe4+?
      • 1...Kxe4
        • 2.Bf3#
        • 2.Qh1#
      • 1...Kxc4!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qxe4#
      • 1...Sxe3+
        • 2.Sxe3#
      • 1...Sxd4+
        • 2.Rxd4#
      • 1...Sg3
        • 2.Rxd8#
      • 1...Sh4
        • 2.Rxd8#
      • 1...Sd6
        • 2.Sc7#
      • 1...Sh6
        • 2.Rxd8#
      • 1...Se7
        • 2.Rxd8#
      • 1...Sg7
        • 2.Rxd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 8
  • Sets
    • R(b);XP(D)::S(A),XR(b)
    • R(b);OGATE,XP(G)::R1(F),XR(b)
    • R(i);SBLOCK::S(I)
    • B(a);N_GUARD::S(I)
    • B(a);N_GUARD::S(I),XB(a)
    • P(g);SBLOCK,XP(K)::R(M),XR(i)
  • Tries
    • Try
      • Q(J);CHECK,XS(d)
      • Refutation
        • B(h);XQ(J)
    • Try
      • P(C);CHECK,XR(b)
      • Refutation
        • K(c);N_SPINS(d),S_FLIGHT,XR(F)
  • Actual
    • Q(J);N_PINS(d),P_PINR(b)
    • Threat
      • QAB1(J),XR(b)
    • Vars
      • S(d);CHECK,XP(D)::S(A),XS(d)
      • S(d);CHECK,OGATE,XP(G)::R1(F),XS(d)
      • S(d);N_GUARD::R(M),XR(i)
      • S(d);SBLOCK::S(I)
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