MESON Chess Problem Database

Problem Display
PID: 253059 (8/2R5/p4n2/1p2N3/1B1kpPp1/p1NP3b/Kn3P2/QR5B w - - 0 1)

Kuzovkov, Aleksandr S

Probleemblad, 1983

8/2R5/p4n2/1p2N3/1B1kpPp1/p1NP3b/Kn3P2/QR5B

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Bc5#
    • 1...Sc4
      • 2.Bc5#
    • 1...Sd5
      • 2.Se2#
    • 1...Sh5
      • 2.Rd7#
    • 1...Sd7
      • 2.Rxd7#
    • 1...Sh7
      • 2.Rd7#
    • 1...Sg8
      • 2.Rd7#
    • 1...e3
      • 2.Se2#
  • Tries
    • 1.Kb3?
      • threat
        • 2.Bc5#
      • 1...Sxd3
        • 2.Sc6#
      • 1...Sd7
        • 2.Rxd7#
      • 1...Sa4!
    • 1.Rc5?
      • threat
        • 2.Se2#
      • 1...exd3
        • 2.Sc6#
      • 1...Bf1!
    • 1.Rd7+?
      • 1...Sd5
        • 2.Se2#
        • 2.Rxd5#
      • 1...Sxd7!
    • 1.Qxb2?
      • threat
        • 2.Bc5#
      • 1...Sd7
        • 2.Rxd7#
      • 1...axb2!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Sc6#
      • 1...Sxd1
        • 2.Bc5#
      • 1...Sxd3
        • 2.Bc5#
      • 1...exd3
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • S(a);::B(H)
    • S(i);SBLOCK::S(F)
    • S(i);N_GUARD::R(K)
    • S(i);N_GUARD::R(K),XS(i)
    • P(e);::S(F)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • B(H)
      • Vars
        • S(a);SBLOCK,XP(G)::S(J)
        • S(i);N_GUARD::R(K),XS(i)
      • Refutation
        • S(a);
    • Try
      • R(K);
      • Threat
        • S(F)
      • Vars
        • P(e);SBLOCK,XP(G)::S(J)
      • Refutation
        • B(c);
    • Try
      • R(K);CHECK
      • Refutation
        • S(i);XR(K)
    • Try
      • Q(A);XS(a)
      • Threat
        • B(H)
      • Vars
        • S(i);N_GUARD::R(K),XS(i)
      • Refutation
        • P(b);XQ(A)
  • Actual
    • R(B);
    • Threat
      • S(J)
    • Vars
      • S(a);XR(B)::B(H)
      • S(a);P_SPINS(a),XP(G)::B(H)
      • P(e);P_SPINP(e),XP(G)::S(F)
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