MESON Chess Problem Database

Problem Display
PID: 231254 (6b1/2p2p1r/1N3k1p/6pP/5nK1/B1R5/7b/4Q3 w - - 0 1)

Kubbel, Arvid Ivanovich

Shakhmaty, 1927

6b1/2p2p1r/1N3k1p/6pP/5nK1/B1R5/7b/4Q3

#2

6 + 9

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg7
      • 2.Sd7#
      • 2.Be7#
      • 2.Qe7#
  • Keys
    • 1.Qa1!
      • threat
        • 2.Re3#
        • 2.Rc6#
      • 1...Ke5
        • 2.Re3#
      • 1...Ke6
        • 2.Re3#
        • 2.Rc6#
      • 1...Kg7
        • 2.Rxc7#
      • 1...Sxh5
        • 2.Rc6#
      • 1...c5
        • 2.Re3#
      • 1...Se2
        • 2.Rc6#
      • 1...Sg2
        • 2.Rc6#
      • 1...Sd3
        • 2.Rc6#
      • 1...Sh3
        • 2.Rc6#
      • 1...Sd5
        • 2.Rc6#
      • 1...Se6
        • 2.Rf3#
      • 1...Sg6
        • 2.Rc6#
      • 1...c6
        • 2.Re3#
        • 2.Rxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(d);S_FLIGHT::QAB(A)+R(C),DCHECK
      • K(d);S_FLIGHT::QAB(A)+R(C),XP(f)
      • S(b);XP(E)::QAB(A)+R(C),DCHECK
      • P(f);::QAB(A)+R(C)
      • S(b);::QAB(A)+R(C),DCHECK
      • S(b);SBLOCK::QAB(A)+R(C),DCHECK
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