Josh and Lloyd Gordon of Toronto have been regular contributors to The Checker Maven, and we're most grateful for it. The Gordons spend many of those long Canadian winter nights playing checkers at home, and we've noticed that over time their checkerboard skills have been growing steadily.
So we weren't all too surprised when the Gordons sent us an interesting problem position with a very clever and very pleasing solution. Better still, the position arose in the course of over the board play.
The initial position was this.
The next few moves are pretty clear: 25-22 (there's nothing else) 22-17 (likewise) 22-17 (certainly not 19-16) 11-16 which now gives us the situation diagrammed below.
Things really don't look so great for White, yet there's a star move that draws, although both sides will have to play quite carefully until the position is settled.
This is not an easy problem by any means, but it's a great challenge, whether or not many months of long, cold winter nights lay ahead for you. Don't freeze up; give it your best, then thaw out the solution by clicking on Read More.
"Advanced" problems are an interesting thing. They're supposed to be difficult, usually targeting an expert practitioner in search of a real challenge. But, properly explained, such problems can be of great use to us lesser mortals, too. Today's problem, we think, is an example of that.
WHITE
BLACK
Black to Play and Win
B:W32,K29,22,K13,10,K6:BK31,K30,27,23,K20,K5.
It's definitely a Black win, but is this an "advanced" problem? We'd rank it perhaps as "advanced intermediate" rather than "expert." What do you think? The real point, though, is that the solution demonstrates a winning technique that is useful and practical.
When you've advanced your knowledge by solving the problem, advance your mouse to Read More to see the solution and explanatory notes.
We haven't had a regular speed problem in a little while, so today we're returning to that theme and subjecting you once again to our unforgiving Javascript clock. The good news, though, is that the problem is very easy.
Oh .. the bad news? You'll have five seconds to solve it!
Fear not. Most players will see it at a glance, but if it takes you a little longer, no matter. Working it out is what really counts.
When you're ready, click on the link below. After you've solved it come back and click on Read More to verify your solution.
August Speed Problem (very easy, 5 seconds)
Each year we mark Labor Day, the celebration of the men and women who make America what it is --- the workers of our nation. From factory worker to small business owner, from taxi driver to doctor, millions of Americans keep our nation going and help make it strong. We're not ones to make class distinctions; we believe that all honest work is worthy of respect and recognition.
The sketch above is of one of the very first Labor Day celebrations, in New York City way back in 1882.
Often on great American holidays we turn to Tom Wiswell, but today we instead offer a setting by another great American problemist of days gone by, Charles Hefter. Mr. Hefter's settings meet Mr. Wiswell's criteria of being natural, clever, and pleasing. Here's one that's simple in form and challenging in execution.
B:W23,21,19,13:B14,6,3,1.
The position is from a game played about 80 years ago; in the actual event, the game was drawn. Mr. Hefter later showed that Black has a win. Can you find it? Labor away and when your work is done, click on Read More to see the solution and notes.
In the chart above, Apple Computer has the "nice problem" of having to figure out what to do with all the money they've made.
"A nice problem to have" is a phrase often heard when someone faces a "dilemma" in which any choice is a good one. Here in Hawai`i, we sometimes have to decide between going to the beach or going to the mall. That's considered a nice problem to have, especially in January.
"A nice problem" in checkers of course means something else, and this week's position, attributed to W. J. Wood, is an example. Mr. Wood himself, after presenting the run-up, stated "Now we have a nice problem." Did he intend a pun or play on words? We rather doubt it.
B:W29,21,20,K6:B16,K14,11,9,7.
We'll warn you that the solution is very long, but it is also very methodical, and you should be able to work out the general direction if not every detail. There is a trap or two along the way, however, so be careful, and when you've given it a nice try, click your mouse nicely on Read More to see the solution and notes.
This year our Fourth of July column appears on the day itself, America's birthday. It's a time to reaffirm our patriotism and honor the greatness of America. At The Checker Maven, we're proud American patriots who are profoundly grateful for the opportunities and blessings that come from living in America, and thankful to the men and women who give so much to defend our freedom.
There's nothing like a Fourth of July picnic to celebrate, and there's nothing like a Tom Wiswell problem to make checkers part of the day. Mr. Wiswell was a great American player, problemist, and patriot, one of the "Greatest Generation" who served in our armed forces during the Second World War.
Here's the problem.
W:W28,26,K21,13:BK29,20,10,5.
Mr. Wiswell called this one "Strolling Through The Park" because he happened upon some players in the park (presumably Central Park in New York City) and saw the White player miss the win. We wouldn't say that the problem is super-hard, but it does require a good eye and good judgment.
Take a little stroll with this one, then walk your mouse to Read More to see the solution.
Today's Checker School entry is a fascinating position we call "Burning the Candle at Both Ends," because the terms could just as well have been "White to Play and Draw." To be sure, this isn't in keeping with the traditional meaning of the phrase, but to us it seemed rather apt. See if you agree: First White must find the right move to save the draw. But then Black has the same task and must hew to the correct path. It's a double-ended problem with both ends burning.
W:W31,27,25,21,20,19:B14,13,12,11,10,5.
Can you work out both sides of this very interesting endgame? We hope you won't have to burn your own candle at both ends in so doing, and rather than stay up all night, you can always click on Read More to see the solution, a sample game, and detailed notes.
Last month we brought you "not quite" a speed problem, and this month is no different. We originally were going to publish today's entry as a speedster, but the position requires a little thought, so again we're dispensing with the JavaScript clock and letting you take all the time you need.
W:W26,K21,K12,11:BK29,K4,K3,1.
At first glance (aren't those famous last words?) it looks like White has it sewed up, as all three Black kings have no safe moves. That just leaves the single Black man ... oh ... wait ... Black has "the move" and White can't necessarily trap the Black man ... hmmm ... not so simple after all.
The winning technique is well worth knowing, so take your time and see if you can figure it out; then click on Read More to see the solution and notes.
"Hitting the books" is something we were admonished to do throughout our academic years, from grade school all the way through graduate school. There was certainly a lot of knowledge in those weighty textbooks, and though acquiring that knowledge wasn't always an enjoyable experience, hitting the books usually paid off.
The same is true with checkers, although we have to admit to enjoying checker study a little more than we enjoyed things like tensor analysis or the works of Kant in the original German. Besides, if we want to be good at checkers, book learning is a necessity, not an option.
Today's study definitely could have come from a checker text.
B:W28,21,K15:BK27,13,9.
White has just played the losing 19-15. What should White have played? And more importantly, how can Black win? This problem is another example of the beautiful subtlety of checkers.
It's only fair to warn you that it will take Black a little while to win this. But the process is no more than a logical and methodical application of textbook principles.
Write a chapter in your own checker textbook by solving this problem, then click on Read More to see our own annotated solution.
Today's problem was sent by regular contributors Lloyd and Josh Gordon of Toronto, Ontario. We were going to feature it as a speed problem, and indeed there are some speed problem aspects here. But the problem goes deeper than the first few moves, as you'll soon see.
So this month, we'll spare you the Javascript clock and let you take as much time as you need. We don't doubt that you'll see the "speed" part pretty quickly. After that, you'll likely need to think it through.
Here's the position.
W:W32,30,27,24,21,15,K2:BK31,22,20,14,12,3,1.
It's an interesting study. Take all the time you need, then click on Read More to see the solution.