MESON Chess Problem Database

Problem Display
PID: 73472 (4Q3/1BrP1P2/2n2pP1/3PN3/Kp1BkpP1/1R3p2/8/1N1R3r w - - 0 1)

Buchwald, Julius

Comm., Milwaukee Journal, 1948

4Q3/1BrP1P2/2n2pP1/3PN3/Kp1BkpP1/1R3p2/8/1N1R3r

#2

13 + 8

5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd4
      • 2.Sd2#
    • 1...Sa5
      • 2.Sxf3#
      • 2.Sc4#
    • 1...Sa7
      • 2.Sxf3#
      • 2.Sc4#
    • 1...Sb8
      • 2.Sxf3#
      • 2.Sc4#
  • Tries
    • 1.Sxf3+?
      • 1...Se5
        • 2.Sbd2#
      • 1...Se7
        • 2.Sbd2#
        • 2.Qxe7#
      • 1...Kxd5!
    • 1.Sc4+?
      • 1...Se5
        • 2.Sd6#
      • 1...Se7
        • 2.Sd6#
        • 2.Qxe7#
      • 1...Kxd5!
  • Keys
    • 1.Rxb4!
      • threat
        • 2.Sc3#
      • 1...Kxd5
        • 2.Bg1#
      • 1...Sxb4
        • 2.Sc4#
      • 1...Sxd4
        • 2.Sd3#
      • 1...Sxe5
        • 2.Bc5#
      • 1...Sa5
        • 2.Sd2#
        • 2.Sd3#
        • 2.Sc4#
      • 1...Sa7
        • 2.Sd2#
        • 2.Sd3#
        • 2.Sc4#
        • 2.Bc5#
      • 1...Se7
        • 2.Sd2#
      • 1...Sb8
        • 2.Sd2#
        • 2.Sd3#
        • 2.Sc4#
        • 2.Bc5#
      • 1...Sd8
        • 2.Sd2#
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(f);SBLOCK,XB(E)::S(A)
  • Tries
    • Try
      • S(H);CHECK,XP(b)
      • Vars
        • S(f);P_SPINS(f)::S(A)
      • Refutation
        • K(d);P_SPINS(f),S_FLIGHT,XP(G)
    • Try
      • S(H);CHECK
      • Vars
        • S(f);P_SPINS(f)::S(H)
      • Refutation
        • K(d);P_SPINS(f),S_FLIGHT,XP(G)
  • Actual
    • R(C);XP(c)
    • Threat
      • S(A)
    • Vars
      • K(d);P_SPINS(f),S_FLIGHT,XP(G)::R(B)+B(E)
      • S(f);N_GUARD,XR(C)::QAR(M)+S(H)
      • S(f);N_GUARD,P_SPINS(f),XB(E)::QAR(M)+S(H)
      • S(f);N_GUARD,P_SPINS(f),XS(H)::R(C)+B(E)
      • S(f);::S(A)
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