Competitions:
1. Prize of the Beheaded Man by Paul Cooijmans: http://iq-tests-for-the-high-range.com/prize_behead.html - until December 21st 2025.
2. World I.Q. Challenge by Brennan Martin: http://www.worldiqchallenge.com/ - until perfect score is reached
New tests:
1. Numerus Strictus Logicae 36 by Andrei Udriste: http://nsl36.net
2. Magnum Opus by Brandon Feick: Link
Recommended tests:
1. Three Sonnets by Heinrich Siemens: http://tweeback.com/hriq/Three-Sonnets.pdf
2. Mathodica 22 by Mislav Predavec: http://news.generiq.net/Mathodica22/mathodica22.html
3. Verecenthon by Ivan Ivec: http://ivec.ultimaiq.net/vercent.htm
4. Labyrinthine LIMIT by Paul Cooijmans: http://iq-tests-for-the-high-range.com/labyrinthine_limit.html
5. LDA-SWaN by Gianluigi Lombardi: https://ldaswantest.wixsite.com/iqtest/
6. Challenger by Zoran Bijač: https://globeiq.net/challenger-2/
7. TetrastIQ Light by Gabriel Garofalo: https://tetrastiqlight.weebly.com/
8. DOT&LINE&PLANE by Tianxi Yu: http://www.chinahighiq.com/col.jsp?id=134
9. Death Figures by Tianxi Yu: http://www.chinahighiq.com/col.jsp?id=139
Practice tests:
1. IQ Test Prep: https://iqtestprep.com/
2. Wechsler IQ Test: https://wechsleriqtest.com/