voroskoi/pistike - Change KFFIG5SYHLEEUZNTGZW2A6WVFBKCST6NGDI4UNPRRHKKIJOSG6YAC

Add repetition tracking

Created by voroskoi on February 1, 2023

KFFIG5SYHLEEUZNTGZW2A6WVFBKCST6NGDI4UNPRRHKKIJOSG6YAC

Dependencies

In channels

main

Change contents

Insertion in src/main.zig at line 21 [5.50]

[3.1067]

[4.1518]

            // "2r3k1/R7/8/1R6/8/8/P4KPP/8 w - - 0 40 ", // repetition

Insertion in src/Search.zig at line 34 [8.35]

[6.373]

[7.1000]

};
const HashHistoryContext = struct {
    pub const hash = hashFn;
    pub const eql = eqlFn;
    fn hashFn(self: @This(), key: u64) u32 {
        _ = self;
        return @truncate(u32, key);
    }
    fn eqlFn(self: @This(), a: u64, b: u64, b_index: usize) bool {
        _ = self;
        _ = b_index;
        return a == b;
    }

Insertion in src/Search.zig at line 49 [8.35]

[7.1003]

const HashHistory = std.ArrayHashMap(u64, void, HashHistoryContext, false);

Insertion in src/Search.zig at line 64 [8.35]

[7.1070]

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    // Move history
    hash_history: HashHistory = undefined,

Insertion in src/Search.zig at line 93 [8.35]

[10.2541]

            .hash_history = HashHistory.init(gs.allocator),

Replacement in src/Search.zig at line 97 [8.35]
B:BD[10.2559] → [10.2559:2599]
```
    pub fn deinit(self: @This()) void {
```
[10.2559]
[10.2599]
```
    pub fn deinit(self: *@This()) void {
```
Insertion in src/Search.zig at line 99 [8.35]
[10.2625]
[11.823]
```
        self.hash_history.deinit();
```

Insertion in src/Search.zig at line 204 [8.35]

[2.1037]

[9.5945]

    fn isDraw(self: @This()) bool {
        if (self.hash_history.contains(self.state.hash)) {
            return true;
        }
        return false;
    }

Deletion in src/Search.zig at line 245 [8.35]
B:BD[9.6406] → [9.6406:6426]
∅:D[9.6426] → [12.193:194]
B:BD[8.1780] → [12.193:194]
```
        nodes += 1;
```

Insertion in src/Search.zig at line 249 [8.35]

[10.2627]

[9.6567]

        nodes += 1;
        if (self.ply > 0 and self.isDraw()) {
            return 0;
        }

Insertion in src/Search.zig at line 265 [8.35]

[2.1772]

[13.41]

                try self.hash_history.put(self.state.hash, {});

Insertion in src/Search.zig at line 280 [8.35]

[2.1805]

[14.451]

                _ = self.hash_history.pop();

Insertion in src/Search.zig at line 317 [8.35]

[9.7933]

            try self.hash_history.put(self.state.hash, {});

Insertion in src/Search.zig at line 321 [8.35]

[9.8019]

                _ = self.hash_history.pop();

Insertion in src/Search.zig at line 367 [8.35]
[9.10142]
[8.2295]
```
            _ = self.hash_history.pop();
```