Problem Display
PID: 4330 (8/8/3n4/3Q4/4N3/3nb2p/3pqR2/1K1k4 w - - 0 1)

Portilla, Vincente Maria Norberto

Source?, 0000

8/8/3n4/3Q4/4N3/3nb2p/3pqR2/1K1k4

#3

4 + 7


3498 Chess Problems by V. M. N. Portilla 1873
14986 White-Hume Collection 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Qf1
      • 2.Rxf1+
        • 2...Ke2
          • 3.Sg3#
        • 2...Se1
          • 3.Sc3#
          • 3.Qh5#
    • 1...Qg4
      • 2.Qxd3
        • threat
          • 3.Rf1#
          • 3.Qf1#
        • 2...Ke1
          • 3.Rf1#
          • 3.Qf1#
        • 2...Bxf2
          • 3.Qxd2#
        • 2...Qe2
          • 3.Qxe2#
        • 2...Qg1
          • 3.Qe2#
        • 2...Qg2
          • 3.Qe2#
    • 1...Qh5
      • 2.Rf1+
        • 2...Ke2
          • 3.Sg3#
        • 2...Se1
          • 3.Sc3#
          • 3.Qxh5#
      • 2.Qxh5+
        • 2...Ke1
          • 3.Qe2#
    • 1...Qe1
      • 2.Sc3#
      • 2.Qb3#
    • 1...Se1
      • 2.Sc3#
  • Tries
    • 1.Rf1+?
      • 1...Qe1
        • 2.Sc3#
        • 2.Qh5#
      • 1...Se1
        • 2.Sc3#
        • 2.Qb3#
      • 1...Qxf1!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qxe2#
      • 1...Qxh5
        • 2.Rf1+
          • 2...Ke2
            • 3.Sg3#
          • 2...Se1
            • 3.Sc3#
      • 1...Bxf2
        • 2.Sc3+
          • 2...Ke1
            • 3.Qxe2#
      • 1...Sxf2
        • 2.Sc3+
          • 2...Ke1
            • 3.Qxe2#
      • 1...Qf3
        • 2.Rf1+
          • 2...Ke2
            • 3.Sg3#
            • 3.Qxf3#
          • 2...Se1
            • 3.Sc3#
            • 3.Qxf3#
        • 2.Qxf3+
          • 2...Ke1
            • 3.Rf1#
            • 3.Qh1#
            • 3.Qe2#
      • 1...Qg4
        • 2.Rf1+
          • 2...Ke2
            • 3.Sg3#
          • 2...Se1
            • 3.Sc3#
            • 3.Qxg4#
        • 2.Qxg4+
          • 2...Ke1
            • 3.Qe2#
            • 3.Qg1#

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