MESON Chess Problem Database

Problem Display
PID: 10721 (3R4/K1p5/p1k5/7r/P7/Q1N3p1/8/8 w - - 0 1)

Speckmann, Werner

1st Prize, Schach, 1967

3R4/K1p5/p1k5/7r/P7/Q1N3p1/8/8

#2

5 + 5

3772 FIDE Album (1965-1967) 1976
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5?
      • threat
        • 2.Se7#
        • 2.Qc1#
        • 2.Qc3#
      • 1...Rh4
        • 2.Se7#
      • 1...Rh1
        • 2.Se7#
        • 2.Qc3#
      • 1...Rh2
        • 2.Se7#
        • 2.Qc3#
      • 1...Re5
        • 2.Qc1#
        • 2.Qc3#
      • 1...Rh7
        • 2.Qc1#
        • 2.Qc3#
      • 1...Rxd5!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Sd5#
      • 1...Kc5
        • 2.Sa2#
      • 1...Rh4
        • 2.Se4#
      • 1...Rh1
        • 2.Sd1#
      • 1...Rh2
        • 2.Se2#
      • 1...Ra5
        • 2.Sb5#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Rc5
        • 2.Qh6#
      • 1...Rd5
        • 2.Sxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(3)
      • Vars
        • R(b);::S(B)
      • Refutation
        • R(b);XS(B)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)+S(B)
    • Vars
      • K(d);P-FLIGHT::QAR(A)+S(B)
      • R(b);N_GUARD::QAR(A)+S(B)
      • R(b);N_GUARD::QAR(A)+S(B),XR(b)
      • R(b);N_GUARD,SBLOCK::QAR(A)
      • R(b);::QAR(A)+S(B),XR(b)
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