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My favorite "simple" chess puzzle...few pieces, hard puzzle

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RestedPawn
This is my favorite "simple puzzle"...when I think of chess puzzles, there are complicated ones with pieces everywhere, and there are simple ones with just a few pieces.  This one is my favorite...simple and yet challenging.  This doesn't have much and you'd think you can solve it quickly, but have a go and see.  Try to solve it in your head before even trying a move.   
Mate in 3
 

 

PactOfCards

Black can draw the game 

PactOfCards

After he takes the bishop, he will run out of time and claim a draw due to insufficient material as white only has a knight. I know it's dirty but black can escape with a draw. 

Arisktotle

It's not dirty, it is untrue. This is a composition and the rules chess.com invented for games don't count for puzzles.

PactOfCards
Arisktotle wrote:

It's not dirty, it is untrue. This is a composition and the rules chess.com invented for games don't count for puzzles.

Source? As far as I'm aware, it's a draw because Chess.com do not recall checkmate patterns when someone flags.

jetoba

Black may be able to escape with a draw in a game on Chess.com but it would be a loss in FIDE (or US Chess, the OP's country) and puzzle solving rules do not take into account any clock flagging.

PactOfCards
jetoba wrote:

Black may be able to escape with a draw in a game on Chess.com but it would be a loss in FIDE (or US Chess, the OP's country) and puzzle solving rules do not take into account any clock flagging.

GIVE ME THE SOURCE !!!

Arisktotle

https://old.fide.com/fide/handbook.html?id=208&view=article 

5..2.2 The game is drawn when a position has arisen in which neither player can checkmate the opponent’s king with any series of legal moves. The game is said to end in a ‘dead position’. This immediately ends the game, provided that the move producing the position was in accordance with Article 3 and Articles 4.2 – 4.7.

6.9 Except where one of Articles 5.1.1, 5.1.2, 5.2.1, 5.2.2, 5.2.3 applies, if a player does not complete the prescribed number of moves in the allotted time, the game is lost by that player. However, the game is drawn if the position is such that the opponent cannot checkmate the player’s king by any possible series of legal moves.

Of course, we can only show you what IS in the FIDE handbook. To verify that the chess.com fantasies are nowhere you will have to read the handbook in its entirety. You're welcome!

 

jetoba
PactOfCards wrote:
jetoba wrote:

Black may be able to escape with a draw in a game on Chess.com but it would be a loss in FIDE (or US Chess, the OP's country) and puzzle solving rules do not take into account any clock flagging.

GIVE ME THE SOURCE !!!

In addition to the FIDE rules above, the US Chess rules (the OP is from the US) are below.  They differ a bit from FIDE in that helpmates are ignored when deciding whether or not a player with only a king and minor piece can win on time.

14E. Insufficient material to win on time.
The game is drawn even when a player exceeds the time limit if one of the following conditions exists as of the most
recently determined legal move. See also 15H, Reporting of results:
TD TIP: Remember a 14E draw claim is first a draw offer (Rule 14, The Drawn Game).
14E1. Lone king.
Opponent has only a lone king.
14E2. King and bishop or king and knight.
Opponent has only king and bishop or king and knight, and does not have a forced win.

 

https://new.uschess.org/sites/default/files/media/documents/us-chess-rule-book-online-only-edition-chp-1-8-24-20.pdf

 

BeastGuy2

SOLVED!

 

PactOfCards
BeastGuy2 wrote:

SOLVED!

 

.

Siemer7

uwu

PactOfCards
jetoba wrote:
PactOfCards wrote:
jetoba wrote:

Black may be able to escape with a draw in a game on Chess.com but it would be a loss in FIDE (or US Chess, the OP's country) and puzzle solving rules do not take into account any clock flagging.

GIVE ME THE SOURCE !!!

In addition to the FIDE rules above, the US Chess rules (the OP is from the US) are below. They differ a bit from FIDE in that helpmates are ignored when deciding whether or not a player with only a king and minor piece can win on time.

14E. Insufficient material to win on time.
The game is drawn even when a player exceeds the time limit if one of the following conditions exists as of the most
recently determined legal move. See also 15H, Reporting of results:
TD TIP: Remember a 14E draw claim is first a draw offer (Rule 14, The Drawn Game).
14E1. Lone king.
Opponent has only a lone king.
14E2. King and bishop or king and knight.
Opponent has only king and bishop or king and knight, and does not have a forced win.

https://new.uschess.org/sites/default/files/media/documents/us-chess-rule-book-online-only-edition-chp-1-8-24-20.pdf

Thanks. Legend

Frankophile

Not too tough.