MESON Chess Problem Database

Problem Display
PID: 138396 (6rk/6R1/8/8/8/7K/6R1/7Q w - - 0 1)

Breuer, Joseph Theodor

Rundbrief Schach, 1935

6rk/6R1/8/8/8/7K/6R1/7Q

#2

4 + 2

23 Die Schwalbe 2010
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qb1?
      • threat
        • 2.Rh7#
        • 2.Rxg8#
        • 2.Qh7#
      • 1...Ra8
        • 2.Rh7#
        • 2.Qh7#
      • 1...Rb8
        • 2.Rh7#
        • 2.Qh7#
        • 2.Qxb8#
      • 1...Rc8
        • 2.Rh7#
        • 2.Qh7#
      • 1...Rd8
        • 2.Rh7#
        • 2.Qh7#
      • 1...Re8
        • 2.Rh7#
        • 2.Qh7#
      • 1...Rf8
        • 2.Rh7#
        • 2.Qh7#
      • 1...Rxg7!
  • Keys
    • 1.Qa1!
      • 1...Rxg7
        • 2.Qxg7#
      • 1...Ra8
        • 2.Ra7#
        • 2.Qxa8#
      • 1...Rb8
        • 2.Rb7#
      • 1...Rc8
        • 2.Rc7#
      • 1...Rd8
        • 2.Rd7#
      • 1...Re8
        • 2.Re7#
      • 1...Rf8
        • 2.Rf7#

Anticipated by 4710(1888), 224722(1888), 181827(1905)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Refutation
        • R(a);XR(D)
  • Actual
    • Q(A);
    • Vars
      • R(a);OGATE,P_SPINR(a),XR(D)::QAB1(A),XR(a)
      • R(a);N_GUARD::QAB(A)+R(D)
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