MESON Chess Problem Database

Problem Display
PID: 181120 (8/K7/4Q3/3p2p1/2pk1p2/5R2/4P3/8 w - - 0 1)

von Wardener, Friedrich Freiherr

Revue d'Echecs, 1904

8/K7/4Q3/3p2p1/2pk1p2/5R2/4P3/8

#2

4 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qb6#
  • Tries
    • 1.Rd3+?
      • 1...Kc5
        • 2.Qb6#
      • 1...cxd3!
    • 1.Qf6+?
      • 1...Kc5
        • 2.Qb6#
      • 1...Ke4!
  • Keys
    • 1.e4!
      • threat
        • 2.Qxd5#
      • 1...Kc5
        • 2.Qb6#
      • 1...dxe4
        • 2.Qd6#
      • 1...fxe4 ep
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • P(a);XR(B)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • P(A);
    • Threat
      • QAR1(C),XP(d)
    • Vars
      • K(b);S_FLIGHT::QAB1(C)
      • P(d);OGATEB,SBLOCK,XP(A)::QAR2(C)
      • P(c);EP,OGATE,XP(A)::QAB1(C),XP(c)
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