Colin James Physics - Logic puzzles.
Last updated: 25th June 2013.
Logic puzzles.
These are general logic puzzles - not Physics puzzles, but they should be challenging and fun (just like Physics).
If you know what you are looking for in a puzzle or have done a similar one before you may find an easier puzzle harder or a harder one straightforward.
So it its worth scanning through the different categories.
When you click on a puzzle it will appear below (and the screen will move down to show the puzzle) with a solution further down the screen.
Easier puzzles.
Running puzzle.
Tennis puzzle.
Water puzzle.
Walking puzzle.
Harder puzzles.
Spending puzzle.
Cakes puzzle.
Ages puzzle.
Chess puzzles.
Chess puzzle 1.
Chess puzzle 2.
Chess puzzle 3.
Chess puzzle 4.
Chess puzzle 5.
Chess puzzle 2.
White to play and mate in two moves.
Solution
Solution
Solution
Solution
Solution 1: Chess puzzle 2.
White move 1.
Ra2 (White Rook moves from a8 to a2).
Black now has four possible moves:
Solution 1 (below): to take the rook on a2 with the pawn on b3 (b3xa2); or
Solution 2 (below): to take the rook on c2 with the pawn on b3 (b3xc2); or
Solution 3 (below): to take the rook on a2 with the king (Kxa2); or
Solution 4 (below): to take the rook on c2 with the king (Kxc2).
From White move 1 above.
Solution 1: Black move 1.
b3xa2 (Black Pawn on b3 takes the White Rook on a2).
Solution 1: White move 2.
Na3# (mate) (White Knight moves from b5 to a3 and black is in checkmate).
Solution 2: Chess puzzle 2.
From White move 1 above.
Solution 2: Black move 1.
b3xc2 (Black Pawn on b3 takes the White Rook on c2).
Solution 2: White move 2.
Nc3# (mate) (White Knight moves from b5 to c3 and black is in checkmate).
Solution 3: Chess puzzle 2.
From White move 1 above.
Solution 3: Black move 1.
Kxa2 (Black King on b1 takes the White Rook on a2).
Solution 3: White move 2.
Nc3# (mate) (White Knight moves from b5 to c3 and black is in checkmate).
Solution 4: Chess puzzle 2.
From White move 1 above.
Solution 4: Black move 1.
Kxc2 (Black King on b1 takes the White Rook on c2).
Solution 4: White move 2.
Na3# (mate) (White Knight moves from b5 to a3 and black is in checkmate).
End of page.