MESON Chess Problem Database

Problem Display
PID: 245882 (2Q4B/2K5/2p3p1/2p1P1P1/2p1kNP1/2P1P3/4r1P1/5N2 w - - 0 1)

Dolginovich, Nikolai Osipovich

Europa-Rochade, 1994

2Q4B/2K5/2p3p1/2p1P1P1/2p1kNP1/2P1P3/4r1P1/5N2

#2

11 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qa6?
      • threat
        • 2.Qxc4#
        • 2.Qxc6#
      • 1...Rxg2
        • 2.Qxc6#
      • 1...Rxe3
        • 2.Qxc4#
      • 1...Rd2!
    • 1.Qe8?
      • threat
        • 2.Qxc6#
        • 2.Qxg6#
      • 1...Rxg2
        • 2.Qxc6#
      • 1...Rd2
        • 2.Qxg6#
      • 1...Rxe3!
    • 1.Qg8?
      • threat
        • 2.Qxc4#
        • 2.Qxg6#
      • 1...Rxe3
        • 2.Qxc4#
      • 1...Rd2
        • 2.Qxg6#
      • 1...Rxg2!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxc4#
        • 2.Qxc6#
        • 2.Qxg6#
      • 1...Rxg2
        • 2.Qxc6#
      • 1...Rxe3
        • 2.Qxc4#
      • 1...Rd2
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XP(B)::QAB(J),XP(e)
        • R(a);XP(D)::QAR2(J),XP(b)
      • Refutation
        • R(a);
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XP(B)::QAB(J),XP(e)
        • R(a);::QAB(J),XP(f)
      • Refutation
        • R(a);XP(D)
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XP(D)::QAR2(J),XP(b)
        • R(a);::QAB(J),XP(f)
      • Refutation
        • R(a);XP(B)
  • Actual
    • Q(J);
    • Threat
      • DUALS(3)
    • Vars
      • R(a);XP(B)::QAB(J),XP(e)
      • R(a);XP(D)::QAR2(J),XP(b)
      • R(a);::QAB(J),XP(f)
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