MESON Chess Problem Database

Problem Display
PID: 26655 (8/K2B2pr/5k1p/4N3/3Q4/6Nb/4R3/8 w - - 0 1)

Wurzburg, Otto

2nd Prize, Pittsburgh Gazette-Times, 1917

8/K2B2pr/5k1p/4N3/3Q4/6Nb/4R3/8

#2

6 + 5

3360 Simple Two-move Themes 1924
3325 Wurzburg Artistry 1974
2988 Izbrannie Kompozitsi 1985
273 Mat Plus 1994
3310 2345 Chess Problems 1997
5454 Near Snap 2012
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3+?
      • 1...Kg6
        • 2.Be8#
      • 1...Kf7!
    • 1.Rf2+?
      • 1...Kg5
        • 2.Qf4#
      • 1...Ke7
        • 2.Sc6#
      • 1...Bf5!
    • 1.Qd6+?
      • 1...Kg5
        • 2.Sf3#
      • 1...Be6!
  • Keys
    • 1.Be8!
      • threat
        • 2.Sf3#
      • 1...g5+
        • 2.Sd7#
      • 1...g6+
        • 2.Sf7#
      • 1...Kg5
        • 2.Sf3#
      • 1...Ke6
        • 2.Sd3#
        • 2.Sf3#
        • 2.Sc4#
        • 2.Sg4#
        • 2.Sc6#
        • 2.Sg6#
        • 2.Sd7#
        • 2.Sf7#
      • 1...Ke7
        • 2.Sg6#
      • 1...Be6
        • 2.Qd8#

This anticipates 143906(1932)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);P-FLIGHT::B(F)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
        • K(b);S_FLIGHT::S(D)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::S(D)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • B(F);
    • Threat
      • QAB(C)+S(D)
    • Vars
      • P(d);CHECK,SBLOCK::QAB(C)+S(D),DCHECK
      • P(d);CHECK,SBLOCK::QAB(C)+S(D)
      • K(b);S_FLIGHT::S(D)
      • K(b);S_FLIGHT::R(A)+S(D),DCHECK
      • B(a);SBLOCK::QAB(C)
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