shogi, repetition draws usually occur in the opening as certain positions are reached that are theoretically disadvantaged for both sides (reciprocal zugzwang). In amateur shogi, repetition draws tend to occur in the middle or endgame as a result of player errors. Impasse The game reaches an Impasse or Deadlock (持将棋 jishōgi) if both kings have advanced into their respective promotion zones – a situation known as 相入玉 (ai-nyū gyoku "double entering kings") – and neither player can hope to mate the other or to gain any further material. An Impasse can result in either a win or a draw. If an Impasse happens, the winner is decided as follows: each player agrees to an Impasse, then each rook or bishop, promoted or not, scores 5 points for the owning player, and all other pieces except kings score 1 point each. A player scoring fewer than 24 points loses. (Note that in the start position, both players have 27 points each.) If neither player has fewer than 24, the game is no contest — a draw. In professional shogi, an Impasse result is always a draw since a player that cannot obtain the 24 points will simply resign. Jishōgi is considered an outcome in its own right rather than no contest, but there is no practical difference. As an Impasse needs to be agreed on for the rule to be invoked, a player may refuse to do so and attempt to win the game in future moves. If that happens, there is no official rule about the verdict of the game. However, in amateur shogi, there are different practices most of which force a win resolution to the Impasse in order to avoid a draw result. The first draw by Impasse occurred in 1731 in a bishop handicap game between the seventh Lifetime Meijin, , and his brother, Sōkei Ōhashi. Entering King As a practical matter, when an opponent's king has entered a player's own territory especially with supporting defending pieces, the opponent's king is often very difficult to mate given the forward attacking nature of most shogi pieces. This state is referred to as entering king (入玉 nyū gyoku). If both players' kings are in entering king states, the game becomes more likely to result in an impasse. In the adjacent diagram example, although White's king is in a strong Bear-in-the-hole castle, Black's king has entered White's territory making it