MESON Chess Problem Database

Problem Display
PID: 162860 (8/p3Rp1P/1p2p3/4n2R/NpPkrN2/1P1qpP1K/4B3/1bB1Q3 w - - 0 1)

Barth, Michael

Sachmatija, 2003

8/p3Rp1P/1p2p3/4n2R/NpPkrN2/1P1qpP1K/4B3/1bB1Q3

#2

12 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Bb2#
    • 1...Sxf3
      • 2.Rd7#
    • 1...Sg4
      • 2.Rd7#
    • 1...Sc6
      • 2.Rd7#
    • 1...Sg6
      • 2.Rd7#
    • 1...Sd7
      • 2.Rxd7#
    • 1...f5
      • 2.Sxe6#
    • 1...f6
      • 2.Sxe6#
  • Tries
    • 1.Rxe6?
      • threat
        • 2.Rd6#
      • 1...Sxc4
        • 2.Rd5#
      • 1...fxe6
        • 2.Sxe6#
      • 1...Qxc4!
    • 1.h8Q?
      • threat
        • 2.Rd7#
      • 1...f6
        • 2.Sxe6#
      • 1...Qxc4!
    • 1.h8B?
      • threat
        • 2.Rd7#
      • 1...f6
        • 2.Sxe6#
      • 1...Qxc4!
  • Keys
    • 1.Qxb4!
      • threat
        • 2.Qd6#
      • 1...Qxc4
        • 2.Bb2#
      • 1...Sxc4
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(b);N_GUARD::B(A)
    • S(g);N_GUARD,XP(E)::R(K)
    • S(g);N_GUARD::R(K)
    • S(g);N_GUARD::R(K),XS(g)
    • P(k);N_GUARD::S(I),XP(i)
  • Tries
    • Try
      • R(K);XP(i)
      • Threat
        • R(K)
      • Vars
        • S(g);OGATE,XP(H)::R1(J)
        • P(k);XR(K)::S(I),XP(k)
      • Refutation
        • Q(b);XP(H)
    • Try
      • P(L);P_PINS(g)
      • Threat
        • R(K)
      • Vars
        • P(k);N_GUARD,N_SPINS(g)::S(I),XP(i)
      • Refutation
        • Q(b);XP(H)
    • Try
      • P(L);P_PINS(g)
      • Threat
        • R(K)
      • Vars
        • P(k);N_GUARD,N_SPINS(g)::S(I),XP(i)
      • Refutation
        • Q(b);XP(H)
  • Actual
    • Q(B);XP(d)
    • Threat
      • QAR2(B)
    • Vars
      • Q(b);N_GUARD,P_SPINQ(b),XP(H)::B(A)
      • S(g);N_GUARD,P_SPINS(g),XP(H)::R(K)
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Developed and maintained by Brian Stephenson.
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