We get our title for today's Checker School installment from the look of the problem position.

B:W28,27,K15,10:BK22,20,16,12.
Black's little "bump" of three men off on the left side of the board is a formation that spells trouble, because it has no mobility, and mobility is what checkers is all about. But this bump in the road, though it's kind of a rough one, won't cause a wreck--- if you know how to handle it. There's a draw here for Black; can you find it?
Don't let this problem bump you off; solve it and then give your mouse a bump on Read More to see the solution, a sample game, and complete notes.![]()
Solution
The solution and lettered notes are from Ben Bolands Famous Position in the Game of Checkers. Numbered notes are by the Editor, using the KingsRow computer engine.
22-17 (or 22-26), 10-7, 17-22---A, 7-2, 22-26, 2-7, 26-22---4, 7-11, 22-26, 15-10, 26-22, 10-14, 22-26, 14-17, 26-31, 28-24, 16-19. Drawn.
Game: 9-14, 22-18, 5-9, 25-22, 12-16, 24-19, 16-20, 30-25, 8-12---1, 22-17, 9-13, 18-9, 13-22, 26-17---2, 6-22, 25-18, 11-15---3, 18-11, 7-16, 23-18, 16-23, 18-14, 10-17, 21-14, 23-26, 31-22, 4-8, 22-18, 8-11, 29-25, 3-7, 25-22, 2-6, 27-23, 1-5, 32-27, 6-10, 14-9, 5-14, 18-9, 10-15, 9-6, 11-16, 6-2, 15-19---B, 2-11, 19-26, 11-15, 26-30, 22-17, 30-26, 17-14, 26-22, 14-10. Forms above position. G. F. Allan, Var. 1, Game 1921, the Draughts World, Vol. 27, Feb. 1906.
A---17-14, 7-2, 14-9, 15-10, 9-5, 2-6, 5-1, 6-9, 1-5, 9-14, 5-1, 14-18---C, 1-5, 18-23, 5-9, 23-26, 9-5, 26-31, 5-9, 28-24, 9-5, 27-23, 20-27, 31-24, 5-9, 23-18*. White Wins. G. F. Allan.
B---7-10, 2-6, 10-14, 6-9, 14-18, 23-14, 15-19. Drawn. G. F. Allan vs. W. J. Cheal, Game 1921, Draughts World, played by correspondence.
C---A shorter way to win; 18-23, 9-5, 10-14. J. Macfarlane.
1---11-15 is definitely to be preferred.
2---25-18 was the correct jump; the game is now even once again.
3---2-6 would have been better.
4---26-31 has to wait: 26-31? 15-18 31-24 28-19 16-23 18-27 12-16 7-10 16-19 10-15 19-24 27-32 24-28 15-11 20-24 11-15 White Wins.
The above position by J. Macfarlane, may be found as No. 1335, in the Draughts World, Vol. 28, March 1906. It was given as a correction of Game 1921 (see above), Var. 1, at 11th move.
Compare the above position to the Wyllie, Robertson, and Petterson Position, Page 175*, and also to the Jackson Position, Page 128*.
*---In Mr. Boland's book---Ed.