MESON Chess Problem Database

Problem Display
PID: 206221 (2n3B1/2KpN3/bR2P3/1N2kpP1/R3p2P/B1ppp1b1/4Q3/8 w - - 0 1)

Witt, Andreas

Probleemblad, 2019

2n3B1/2KpN3/bR2P3/1N2kpP1/R3p2P/B1ppp1b1/4Q3/8

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Sg6#
    • 1...Sxb6
      • 2.Bd6#
    • 1...Sd6
      • 2.Bxd6#
    • 1...Sa7
      • 2.Bd6#
    • 1...d5
      • 2.Sg6#
  • Tries
    • 1.Sxc3?
      • threat
        • 2.Sg6#
      • 1...Kf4
        • 2.Sg6#
      • 1...Sxe7
        • 2.Bd6#
      • 1...f4
        • 2.Rxe4#
      • 1...Bc4!
    • 1.Rd4?
      • threat
        • 2.Sg6#
      • 1...Kf4
        • 2.Sg6#
      • 1...Sxe7
        • 2.Bd6#
      • 1...f4
        • 2.Rd5#
      • 1...Bxb5!
    • 1.Rd6?
      • threat
        • 2.Sg6#
      • 1...Kf4
        • 2.Sg6#
      • 1...Sxd6
        • 2.Bxd6#
      • 1...f4
        • 2.Rd5#
      • 1...Sxe7!
    • 1.Qa2?
      • threat
        • 2.Sg6#
      • 1...Sxe7
        • 2.Bd6#
      • 1...f4
        • 2.Qd5#
      • 1...Kf4!
  • Keys
    • 1.exd7!
      • threat
        • 2.Sg6#
      • 1...Kf4
        • 2.Sg6#
      • 1...Sxe7
        • 2.Bd6#
      • 1...f4
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • K(f);P_SPINP(e),S_FLIGHT::S(J)
    • S(j);N_GUARD,XR(G)::B(B)
    • S(j);N_GUARD::B(B),XS(j)
    • S(j);N_GUARD::B(B)
    • P(i);SBLOCK::S(J)
  • Tries
    • Try
      • S(E);XP(a)
      • Threat
        • S(J)
      • Vars
        • K(f);P_SPINP(e),S_FLIGHT::S(J)
        • S(j);N_GUARD,XS(J)::B(B)
        • P(g);N_GUARD::R1(C),XP(e)
      • Refutation
        • B(h);
    • Try
      • R(C);
      • Threat
        • S(J)
      • Vars
        • K(f);P_SPINP(e),S_FLIGHT::S(J)
        • S(j);N_GUARD,XS(J)::B(B)
        • P(g);SBLOCK::R1(C)
      • Refutation
        • B(h);XS(E)
    • Try
      • R(G);
      • Threat
        • S(J)
      • Vars
        • K(f);P_SPINP(e),S_FLIGHT::S(J)
        • S(j);OGATE,XR(G)::B(B),XS(j)
        • P(g);SBLOCK::R1(G)
      • Refutation
        • S(j);XS(J)
    • Try
      • Q(A);
      • Threat
        • S(J)
      • Vars
        • S(j);N_GUARD,XS(J)::B(B)
        • P(g);SBLOCK::QAR1(A)
      • Refutation
        • K(f);P_SPINP(e),S_FLIGHT
  • Actual
    • P(H);XP(i)
    • Threat
      • S(J)
    • Vars
      • K(f);P_SPINP(e),S_FLIGHT::S(J)
      • S(j);N_GUARD,XS(J)::B(B)
      • P(g);SBLOCK::R1(G)
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Developed and maintained by Brian Stephenson.
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