8/8/8/3k4/8/8/1R3K2/6R1 w - - 0 1|Two-Rook Mate|Rooks work together to crush the enemy king against one side of the board!
8/8/4k3/8/8/8/8/KQ6 w - - 0 29|Mate with Queen|The Queen is powerful, but she needs the King's help! (Watch out for stalemates!)
7R/8/8/3k4/8/8/8/K7 w - - 0 1|Mate with Rook|The King helps the Rook secure the win!
8/8/1K6/3k1B2/8/8/5B2/8 w - - 0 1|Two-Bishop Mate|All three pieces must cooperate to force the enemy into a corner
8/8/K2n4/3k4/8/Q7/8/8 w - - 0 1|Queen vs Knight|Try to force your opponent's pieces to the side of the board, then divide & conquer!
k7/1r6/2K5/3Q4/8/8/8/8 w - - 0 1|Queen vs Rook|Can you prevail with the superior major piece??
6k1/5ppp/8/8/8/8/5PPP/6K1 w - - 0 1|King & Pawn Basics 1|This is equal. Can you hold the draw?
6k1/pp4pp/8/8/8/8/PPP2PPP/6K1 w - - 0 1|King & Pawn Basics 2|Win with a 2 pawn advantage!
4k3/8/4K3/8/8/8/4P3/8 w - - 0 1|King & Pawn vs King 1|You must get control of the queening square (without losing the pawn)!
4k3/8/8/8/8/8/4P3/4K3 w - - 0 1|King & Pawn vs King 2|Get in front of your pawn & use "the opposition" to win!
8/8/8/6k1/8/6P1/5KP1/8 w - - 0 1|King with Doubled Pawns|You can use your 2nd pawn to use a key tempo and take the opposition when required…
8/8/3k4/3p4/3K4/8/8/8 w - - 0 1|Draw vs King & Pawn|Secure a draw by not letting the enemy king in front of his pawn; when you step back, stay in line with the pawn!
8/4k2K/8/8/7P/8/8/8 w - - 0 1|Draw vs Rook Pawn|What can you use to block the pawn's forward progress?
8/6kP/6P1/6K1/8/8/8/8 w - - 0 3|King & 2 Pawns vs King|Sometimes you have to let some material go in order to make progress!
r3kbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w - - 0 1|Extra Material 1|You have a big advantage in strength! Can you beat a quick-thinking Computer? (Hint: Check all your moves for safety first!)
rnb1kbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1|Extra Material 2: A Queen|You're up a whole Queen. Use your advantage to beat a high Computer level!
4k3/pppppppp/8/8/8/8/PPPPPPPP/4K2R w - - 0 1|Extra Material 3: A Rook|You're up a Rook. Use your advantage to beat a high Computer level!
4k3/pppppppp/8/8/8/8/PPPPPPPP/2B1K3 w - - 0 1|Extra Material 4: A Bishop|You're up a Bishop. Use your advantage to win!
4k3/pppppppp/8/8/8/8/PPPPPPPP/4K1N1 w - - 0 1|Extra Material 5: A Knight|You're up a Knight. Use your advantage to win!
8/8/1k1p4/3P1K2/8/8/8/8 w - - 0 1|A Common "Zugzwang"|Try to put your opponent into Zugzwang - a position in which it would be best NOT to move at all! (Hint: Sometimes the shortest route is not the best.) 
8/5pp1/Kp5p/1Pk5/8/8/5PPP/8 w - - 0 2|Zugzwang with Pawns|Whoever has to move the King first loses… Choose your pawn moves with care!
5k2/6pp/5p2/r7/P7/8/R4PPP/5K2 w - - 0 1|Rook Behind Pawn|Having a Rook behind a passed pawn is ideal. Use this to your advantage!
K7/P4k2/8/8/8/8/4R3/1r6 w - - 0 1|Rook & Corner Pawn|Your King and Pawn need Rook support!
1r6/8/5k2/8/1P6/1K6/8/3R4 w - - 0 1|Cutting Off the Enemy King|Keep the enemy King away as long as possible while you improve your position!
1Q6/8/6q1/3k4/8/3p4/8/3K4 w - - 0 1|Queen Ending minus 1 pawn|Two ways to draw: Trade off the Queens or get rid of the enemy pawn!
8/8/4k3/5p2/3K1Pp1/6P1/8/8 w - - 0 1|Force a Way In|Maneuver into the position and capture enemy pawns!
8/8/1k6/8/P1P5/8/8/7K w - - 0 3|Two Isolated Pawns Win|Advance your King to prove that the enemy can't stop both threats!
8/4k3/8/1p5p/1P5P/5K2/8/8 w - - 0 5|Distant Opposition|Use the power of the opposition to win one of the pawns!
8/4k3/3p4/3P4/2P5/8/8/5K2 w - - 0 1|Outflanking & Opposition|Opposition is important here, but be mindful: You can't use the e5 square, so distant opposition on the e-file isn't worth much…
8/2k5/R7/K7/5p2/6p1/8/8 w - - 0 1|1 Rook vs 2 pawns|Find an economical way to stop both pawns!
8/4b1k1/8/6p1/7p/p6P/4BKP1/8 w - - 0 1|Opposite Bishops Draw|You should be able to hold the draw despite Black's extra pawn!
8/1p1k4/1P6/2PK4/8/8/8/8 w - - 0 1|Tricky Triangulation|To win this, you've got to somehow achieve the start position but with the other guy to move (zugzwang)! 
8/2k5/1p6/1P1K4/8/8/8/8 w - - 0 1|Winning Knight Pawn|Step 1: Win the enemy pawn!
7K/8/k1P5/7p/8/8/8/8 w|1 King with 2 Problems|This famous composition by Reti shows the power of the King. Can he secure the draw by either stopping the black pawn or queening his own??
K6Q/8/8/8/8/8/3pk3/8 w - - 0 1|Queen vs Advanced Pawn 1|Hint: You can advance your King to help every time your Queen forces the enemy King onto the queening square!
8/8/1KP5/8/6k1/8/8/5q2 w - - 0 1|Queen vs Advanced Pawn 2|Unlike the previous drill, the defender can draw if the advanced pawn is on the c or f files (think stalemate!)
2b2B2/8/p7/4k2p/8/8/8/4K3 w - - 0 1|Draw vs Bishop & 2 pawns|Hint: Your opponent's Bishop can't cover a1…
5k2/p4ppp/8/8/8/8/PP3PPP/6K1 w - - 0 1|One-Pawn Advantage|Hint: Use your pawn majority to decoy the enemy king to the Queenside… away from the real action!
3K4/8/8/5p2/4k3/8/8/R7 w - - 0 1|Rook vs Pawn|The Rook can't stop the pawn alone & you can't afford to waste moves!
8/1p6/8/8/8/8/1P6/K6k w - - 0 1|Shouldering an Enemy King|To win, you must keep the enemy king away, or he'll take your pawn when you take his!
r1bq1rk1/pp1n1ppp/2n1p3/3pP3/3P4/P1PB1N2/5PPP/R1BQ1RK1 w - - 0 20|The Greek Gift|Bxh7! is a common sacrifice, but you must play accurately afterwards to secure the advantage!
8/8/8/6p1/1kp2p1p/5P1P/PK4P1/8 w - - 0 1|An Outside Passer 1|It's common to use an outside passed pawn as a decoy. When the enemy king grabs it, your king gets a head-start to the other side of the board!
8/6p1/5pkp/R4p2/P7/8/4PpPP/7K w - - 0 2|An Outside Passer 2|Not as hopeless as it looks! Start with a sacrifice to stop the promotion…
8/5b2/8/4k3/4B3/3PKP2/8/8 w - - 0 1|Bishop Ending + 2 pawns|Advance the pawns & keep your King active!
r5rk/2n1q1pp/pn2p3/1p1pP3/1PpP1PN1/2P2NR1/P1Q4P/5R1K w - - 0 1|Attack the Castle!|Try launching a direct attack on the castled king. The advantage is yours!
rnbqkbnr/pppppppp/8/8/2PPPP2/1PNB1N2/PB4PP/R2Q1RK1 w kq - 0 1|A Big Head-Start|You're far ahead in development! Can you keep the momentum going & win!?
1K1k4/1P6/8/8/8/8/r7/2R5 w - - 0 1|Lucena Position|Build a bridge: Use your Rook to cut off the enemy king and to create a future barrier between the enemy Rook and your King!
1r6/8/8/8/4pk2/8/R3K3/8 w - - 0 1|Philidor Position|Also known as the "3rd rank defense"! Hold the draw with an active Rook!
5k2/5N2/5K2/5B2/8/8/8/8 w - - 0 1|Bishop & Knight Mate|A tricky one! You have to use your pieces expertly to force the King into a corner that your Bishop can hit!