If you've ever lived in Canada, you'll know about the Robertson screwdriver, invented by Canadian P. L. Robertson around 1908. Robertson screws and screwdrivers supposedly have many practical advantages, though we won't go into them here.
Would P. L. Robertson be related to D. Robertson of Glasgow? Probably not, but if the Canadian Robertson was known for practicality in tools, Glasgow Robertson might equally be known for practicality in checker settings.
Consider the problem below.
This is, indeed, a practical situation; Black has two Kings but is down a piece. Pulling off a draw in this situation would be rather a success.
Can you do it? Keep your grip on your best checker tools, and give this one a turn or two. You can see the solution by applying your mouse to Read More.[Read More]
A spectacular finale: It's the goal of many a concert, show, or special event, and it sends everyone home just as pleased as might be, often with an unforgettable memory.
Does checkers offer the same level of excitement? Certainly! Today we bring you a problem that will make you sit up in your seat.
This is a stroke problem that is supposed to an "easy" one, but we have our doubts about that unless your powers of visualization are very well developed. We'd call it at least "medium" in difficulty, but as a pleaser, it surely rates way up there.
Stroke problems may not be practical, but they are great fun, and they develop our ability to look ahead. Give this one a try and see if you aren't just a little taken in by the spectacular conclusion. As always, clicking on Read More will show you the winning moves.[Read More]
No, we don't mean that kind of "medium" and we don't expect you to divine the solution to today's checker problem; rather, we consider it "medium" in difficulty. It's a nice setting sent to us by Toronto's intrepid checkerists, Lloyd and Josh Gordon.
The stars tell us you'll be able to solve this one, as long as you keep your thinking channels open. It won't take a seance, though, to check your solution; all you need do is wave your mouse on Read More to see how it's done.[Read More]
The first day of fall is just a few days away at the time this column will be published, and it's time to get serious. All the students are back in school and all regular activities have likely resumed by now. With cold weather ahead, it's time to sharpen your checker skills to prepare for the busy checker season ahead.
Of course, The Checker Maven is always willing to help, so we've got a problem today that's somewhat tougher than last week's entry.
Will you solve it or fall down on this one? You should be able to solve it, but you can always let your mouse fall on Read More to see the solution.[Read More]
Fall in the Northern Hemisphere is not far off, and if you live in a so-called "temperate" climate zone, you're probably out enjoying the last of the warm weather. So today, we won't keep you from your outdoor pursuits for long; our problem definitely falls into the "easy" category, and you'll solve it in short order. The position was provided by regular contributors Josh and Lloyd Gordon of Toronto.
You've probably already solved it, but just in case, ease your mouse on to Read More to easily check your solution.[Read More]
On every Labor Day holiday, we pay tribute to the common man and woman. Yes, we've said it before, but it's worth saying again: These are the people who, through honest hard work, make our nation what it is. Whatever you do, be proud of it and celebrate your contribution. We believe that all occupations are honorable, and that the farmer in the field and the laborer on the construction site can take pride of place right alongside the business executive and the real estate tycoon. We all have our job to do, and all of it is important.
Checkers is a great equalizer. Great players have come from humble origins. Over the board, it makes no difference if you're rich or poor, famous or unknown; only your skill and ability count for anything.
We don't know what your life's calling may be, but if you're here, you must be a checker fan, and today, as we recognize Labor Day together, we hope we've got something pleasing for you. Naturally, we've turned to that great problemist and American patriot, Tom Wiswell, with a composition he called "The Pocket."
This is a very practical problem, showing a way to get a draw when things look rather difficult. Would you be able to find the draw over the board? Labor away at it--- checkers is an honorable pursuit if there ever was one--- and then work your mouse over to Read More to see the solution.[Read More]
Does the word "interchange" call to mind the kind of hopelessly complicated tangle of roadways depicted above? We're not sure if this photo is real or satire, but please remind us to seek an alternative route.
In checkers, "interchange" can have different meanings, the most common ones probably referring to an exchange of pieces or an exchange of positions.
Today, we'll present a study that takes the idea to its ultimate conclusion. This is not a typical checker problem, but it has a great deal of didactic value. The exact origin of this problem is unknown, but it's been around for a while.
The problem is to go from the start position
to the following fully interchanged position.
Of course, this has to be done completely with legal moves (e.g., all forced captures will have to be avoided).
Now, we won't say it's easy or short (it's neither), but a methodical, thoughtful approach will yield results. This is a great exercise in planning and visualizing, and we believe it will aid in the development of over-the-board skills. And in the process, you'll certainly learn something about mobility, traffic jams, and clearing a path.
Can you untangle this one, or will you loop around in your quest for a solution? It's worth your time and effort, but when you want to get out of the traffic, just click on Read More to see an animated solution.[Read More]
Shown above is a hotel room that is quite attractive because it's nice and neat, giving it plenty of appeal. At least based on the photo, you'd most likely be quite willing to stay there for business or vacation.
Checker problems can be nice and neat, too, with solutions that appeal and settings that draw you in. We think the problem below meets these criteria.
This problem is "nice" in that it has a very flashy solution which is reasonably well concealed. And the problem is "neat" in that the author's intended solution can be avoided, yet there is still a solid win which demonstrates practical technique.
Are you nice, or neat, or nice and neat? Don't be mean and don't mess it up! Solve the problem and click on Read More to see the solutions.[Read More]
Hard Problem is actually the title of a play by Tom Stoppard that ran at the Scena Theatre in Washington, D.C., early this year. While the "problem" is about consciousness, not checkers, by all accounts it was a good show.
We hope we have a good show for you today as well, with a "hard problem" about checkers. Let's jump right in.
You'll need to maintain a high degree of consciousness to solve this one, and, regardless of possible metaphysical implications, you'll have to focus and apply solid over the board visualization skills. Try to solve it without moving the pieces; that will definitely be a mind-expanding experience. Then, when you're done, make a conscious decision to click on Read More to see the solution.[Read More]
How good are you at geometry? Does the problem above look easy to you? To us, it looked easy in principle, and we didn't need more than a minute or two to come up with a set of equations to represent the relationships in the diagram. Then we went to solve the equations for the desired variable 'x'. That too was just the work of a couple of minutes ... until we ran into what we'll call "a little snag."
Hopefully today's checker problem will be the work of a few seconds (not even minutes), just a brief summer interlude, with no hidden snag. Let's have a look.
You've probably already solved it, but we'll extend an extra incentive to click on Read More: We'll also give the answer to the math problem.[Read More]