H. G. Muller wrote on Thu, Sep 20, 2018 05:39 PM UTC:
There are only 98 positions (out of a total of 64*63*62 = 249984, counting also illegal positions) where King + Charging Knight is not won against a bare King, when the strong side is on move. With the bare King on move, he loses in 80.5% of the positions. In the other 20% of the positions he captures the enemy King or the (unprotected) Charging Knight on his first move, or is stalemated.
There are only 98 positions (out of a total of 64*63*62 = 249984, counting also illegal positions) where King + Charging Knight is not won against a bare King, when the strong side is on move. With the bare King on move, he loses in 80.5% of the positions. In the other 20% of the positions he captures the enemy King or the (unprotected) Charging Knight on his first move, or is stalemated.
It takes at most 33 moves to force the checkmate:
mated mate
King captures 50168
mates 36 ( 0.00 sec)
in-1 30 126 ( 0.01 sec)
in-2 90 158 ( 0.01 sec)
in-3 138 446 ( 0.01 sec)
in-4 198 560 ( 0.01 sec)
in-5 334 772 ( 0.01 sec)
in-6 278 1122 ( 0.01 sec)
in-7 498 908 ( 0.01 sec)
in-8 770 1630 ( 0.01 sec)
in-9 808 2246 ( 0.02 sec)
in-10 1240 2274 ( 0.02 sec)
in-11 1720 3124 ( 0.02 sec)
in-12 2312 3978 ( 0.02 sec)
in-13 2606 4922 ( 0.03 sec)
in-14 2930 5294 ( 0.03 sec)
in-15 4002 5400 ( 0.03 sec)
in-16 4432 6778 ( 0.04 sec)
in-17 4966 6770 ( 0.04 sec)
in-18 5072 7006 ( 0.04 sec)
in-19 6334 6988 ( 0.04 sec)
in-20 7678 8402 ( 0.04 sec)
in-21 8512 9134 ( 0.05 sec)
in-22 9074 8836 ( 0.05 sec)
in-23 11468 10968 ( 0.05 sec)
in-24 15336 13132 ( 0.06 sec)
in-25 17800 16642 ( 0.06 sec)
in-26 20122 17610 ( 0.07 sec)
in-27 21332 18210 ( 0.07 sec)
in-28 20308 15816 ( 0.08 sec)
in-29 16108 11550 ( 0.08 sec)
in-30 10430 7332 ( 0.08 sec)
in-31 3470 1386 ( 0.08 sec)
in-32 666 174 ( 0.08 sec)
in-33 124 24 ( 0.09 sec)
in-34 0 0 ( 0.09 sec)
won: 249886 (100.0%)
lost: 201222 ( 80.5%)
avg: 23.7 moves