You've been placed on a course of expensive medication in which you are to take one tablet of Sildenafil and one tablet of Citrate daily. You must be careful that you take just one of each because taking more of either can have serious side effects.
Taking Sildenafil without taking Citrate, or vice versa, can also be very serious, because they must be taken together in order to be effective. In summary, you must take exactly one of the Sildenafil pills and one of the Citrate pills at one time. Therefore, you open up the Sildenafil bottle, and you tap one Sildenafil pill into your hand. You put that bottle aside and you open the Citrate bottle. You do the same, but by mistake, two ...View full teaser and answer
So, you thought you had seen the last of knight endings? I was fortunate enough to spend 4+ hours with GM Lev Alburt, three time US champion, and he was kind enough to give me several of his books. His most recent book on the world championship is a gem, and we’ll get to that. I would first like to take a few of his positions from “Chess for...View solution
What does this rebus translate to?
Hit. Der.View full teaser and answer
Can you decipher this common phrase?
eyeeseeexceptView full teaser and answer
What common phrase does this translate to?
"Cherries, come here!"
"Raspberries, come here!"
"Apples, come here!"
"Pineapples, come here!"
Another knight ending. This one is more challenging, but White does win even though Black threatens perpetual check.View solution
Mr. Black, Mr. Gray, and Mr. White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr. Black, who hits his shot 1/3 of the time, gets to shoot first. Mr. Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr. White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr. Black, where should you shoot first for the highest chance of survival?View full teaser and answer
What common phrase does this rebus translate to?
D B = 1
N BB = 2
A BBB = 3
T BBBB = 4
S BBBBB = 5
This is a study by Cheron. It’s White to Play and Win. How would you go about it?View solution
I am a rock group that has 4 members, all of whom are dead, one of which was murdered. What am I?View full teaser and answer
Six girls, Beth, Haley, Kayla, Liza, Reeva, and Zoe, are in the junior cabin at camp. They sleep in bunk beds. Each girl has a different color blanket on her bed. The beds are lined up in a row with red, black, yellow, brown, blue, and green blankets.
1. Reeva and Haley's bed is closest to the door.
2. The color of the blankets on the bottom bunks all begin with the same letter.
3. The color of Beth's blanket does not begin with the same letter as the beginning of her name.
4. Reeva's blanket color does begin with the same letter as her name.
5. The blue blanket is under the red blanket.
6. Liza and Kayla like their lower bunks.
7. Kayla is in ...
It’s funny where you can run into chess problems. I ran into this one on facebook this morning and just had to share. White is threatened with a mate in one yet can still engineer a draw.View solution
What's the rebus shown by this display below?
A group of four prisoners were held captive by the enemy and each prisoner was to be shot each day through the week. As natural disasters were common in this specific part of the world, the group of prisoners decided to make up a plan of distracting the guards. Before each prisoner would be shot, they would shout out a natural disaster, which would cause chaos and distract everyone to give enough time for each prisoner to escape. As three days passed the first three prisoners escaped by shouting out their chosen natural disasters and running away, however the final prisoner shouted out a disaster and was shot dead on the spot.
What was the natural disaster he shouted?View full teaser and answer
TRANCE, STAIN, CHIME, TUBA and PERK. These words all belong to the same logical family. Which of the following words also belongs to that family?
GERMANE, EMBARGO, BANANA and NIGHTMAREView full teaser and answer
A mate in 7 by Curnock. Just like the previous puzzle, you have to find the right man for the job. That piece will make 6 of the first 7 moves.View solution
A blind man drives up to a house, gets out of the car and goes up to the door with a package. The homeowner takes the package and gives the blind man a check. The blind man then drives away. What was in the package?View full teaser and answer
What, when you need it you throw away,
but when you don't need it you take it back?
A delightful puzzle. A mate happens. The best hint I can give is to find the one right man for the job.View solution
A man leaves home on foot one evening, makes three left turns and arrives back home to find two masked men waiting there. Who are they?View full teaser and answer