MESON Chess Problem Database

Problem Display
PID: 16628 (8/8/4p3/4B1r1/1p6/1KN4b/8/k1N2Rr1 w - - 0 1)

Wurzburg, Otto

3rd HM., American Chess Bulletin, 1942

8/8/4p3/4B1r1/1p6/1KN4b/8/k1N2Rr1

#2

5 + 6

5088 How to Solve Chess Problems 1945
5064 100 Years of the American Two-move Chess Problem 1962
3325 Wurzburg Artistry 1974
3310 2345 Chess Problems 1997
4393 Uralski Problemist 2002
133 The Problemist Supplement 2005

SOLUTION

  • SOUND
  • Sets
    • 1...R1g2
      • 2.S1a2#
      • 2.S1e2#
      • 2.Sd3#
  • Tries
    • 1.Se4+?
      • 1...Kb1
        • 2.Sd2#
      • 1...Rxe5!
  • Keys
    • 1.Kc2!
      • threat
        • 2.Sb3#
      • 1...R1g2+
        • 2.S1e2#
      • 1...R5g2+
        • 2.S3e2#
      • 1...Bf5+
        • 2.Se4#
      • 1...b3+
        • 2.Sxb3#
      • 1...bxc3
        • 2.Bxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::S(D)
      • Refutation
        • R(e);XB(E)
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • R(B)+S(A),DCHECK
    • Vars
      • R(b);CHECK,N_GUARD,S_CUTB(c)::R(B)+S(A)
      • R(e);CHECK,N_GUARD::B(E)+S(D)
      • B(c);CHECK,S_CUTR(e)::B(E)+S(D)
      • P(d);CHECK::R(B)+S(A),DCHECK,XP(d)
      • P(d);OGATE,P_SPINP(d),XS(D)::B(E),XP(d)
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