Longest immobility problems

Records

n pieces

endgame

longest mate

2

NA

No mate

3

NA

No mate

4 (so far)

漢車兵楚

9

5 (so far)

漢包馬楚包

5

6 (so far)

漢包馬士楚包

16

All endgames

Endgame

漢車兵楚

9

NA

漢包馬楚包

5

NA

漢包馬士楚包

16

NA

漢包象士楚包

15

NA

漢車兵楚

<

1.8777
2.7767
3.6757
4.5747
5.4746
6.4645
7.4544
8.4443
9.4342

漢包馬楚包

<

1.59漢馬67
2.67漢馬55
3.55漢馬63
4.63漢馬71
5.71漢馬52

漢包馬士楚包

<

1.39漢士40
2.3839
3.40漢士50
4.3940
5.50漢士60
6.4050
7.60漢士59
8.5060
9.34漢包32
10.32漢包40
11.40漢包70
12.70漢包60
13.59漢士49
14.49漢士39
15.50漢包70
16.70漢包40

漢包象士楚包

<

1.39漢士40
2.40漢士50
3.50漢士60
4.3839
5.3940
6.4050
7.36漢包32
8.32漢包35
9.35漢包5
10.5漢包45
11.60漢士49
12.49漢士38
13.45漢包5
14.5漢包35
15.35漢包39