MESON Chess Problem Database

Problem Display
PID: 18161 (3R2b1/2n5/2ppk1B1/7R/6KQ/8/8/8 w - - 0 1)

Richenberg, LJ

Time & Tide, 1953

3R2b1/2n5/2ppk1B1/7R/6KQ/8/8/8

#2

5 + 5

5454 Near Snap 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Rf5?
      • threat
        • 2.Qe1#
        • 2.Qf6#
      • 1...Se8
        • 2.Qe1#
      • 1...Sd5!
    • 1.Re8+?
      • 1...Kd7
        • 2.Qe7#
        • 2.Qd8#
      • 1...Sxe8!
  • Keys
    • 1.Kg5!
      • threat
        • 2.Qe4#
      • 1...Kd5
        • 2.Kf6#
      • 1...Ke5
        • 2.Qe4#
      • 1...Ke7
        • 2.Kf5#
      • 1...d5
        • 2.Qe1#

Anticipated by 95234(1898), 92667(1900), 120807(1906), 189559(1911), 145656(1921)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);::QAR(B)
      • Refutation
        • S(d);
    • Try
      • R(E);CHECK
      • Refutation
        • S(d);XR(E)
  • Actual
    • K(A);P-FLIGHT
    • Threat
      • QAR2(B)
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT::R(C)+K(A)
      • K(c);P-FLIGHT::QAR1(B)
      • K(c);P-FLIGHT::QAB(B)+K(A)
      • P(b);::QAR(B)
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