MESON Chess Problem Database

Problem Display
PID: 16050 (8/2p1K2b/2r1p3/2n1k3/3pPN2/1R4P1/Qp1N3B/5R1n w - - 0 1)

Krizhanivsky, Vasil Viktorovich

Probleemblad, 2000

8/2p1K2b/2r1p3/2n1k3/3pPN2/1R4P1/Qp1N3B/5R1n

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bg6
      • 2.Sxg6#
    • 1...Bg8
      • 2.Sg6#
    • 1...Sxb3
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
    • 1...Sa4
      • 2.Sd3#
    • 1...Sa6
      • 2.Sd3#
    • 1...Sb7
      • 2.Sd3#
    • 1...Sd7
      • 2.Sd3#
    • 1...d3
      • 2.Qxb2#
  • Tries
    • 1.g4?
      • threat
        • 2.Sd3#
        • 2.Sg6#
      • 1...Bxe4
        • 2.Sc4#
      • 1...Sxe4
        • 2.Sf3#
      • 1...d3
        • 2.Qxb2#
      • 1...Bg6
        • 2.Sd3#
        • 2.Sxg6#
      • 1...Sd3
        • 2.Sxd3#
        • 2.Sg6#
      • 1...Sg3!
  • Keys
    • 1.Re3!
      • threat
        • 2.Sf3#
        • 2.Sc4#
      • 1...Bxe4
        • 2.Sg6#
      • 1...Sxg3
        • 2.Sc4#
      • 1...Sxe4
        • 2.Sd3#
      • 1...dxe3
        • 2.Qxb2#
      • 1...d3
        • 2.Sf3#
        • 2.Qxb2#
      • 1...Sb3
        • 2.Sf3#
        • 2.Sd3#
      • 1...Sd3
        • 2.Sf3#
        • 2.Sxd3#
      • 1...Sa4
        • 2.Sf3#
        • 2.Sd3#
      • 1...Sa6
        • 2.Sf3#
        • 2.Sd3#
      • 1...Sb7
        • 2.Sf3#
        • 2.Sd3#
      • 1...Sd7
        • 2.Sf3#
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • B(i);N_GUARD::S(H),XB(i)
    • B(i);N_GUARD::S(H)
    • S(d);N_GUARD,XR(E)::S(H)
    • S(d);N_GUARD::S(H),XS(d)
    • S(d);N_GUARD::S(H)
    • P(c);OGATEB::QAB(B),XP(b)
  • Tries
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(i);SBLOCK,XP(G)::S(C)
        • S(d);SBLOCK,XP(G)::S(C)
        • P(c);OGATEB::QAB(B),XP(b)
      • Refutation
        • S(a);
  • Actual
    • R(E);
    • Threat
      • DUALS(2)
    • Vars
      • B(i);N_GUARD,P_SPINB(i),XP(G)::S(H)
      • S(a);XP(F)::S(C)
      • S(d);N_GUARD,P_SPINS(d),XP(G)::S(H)
      • P(c);OGATEB,XR(E)::QAB(B),XP(b)
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