knight path: Hints for solution field are misleading

[gyermolenko]

g5 ⟹ f2

Here at first I thought it asks for a square name only. In cases like that if commas and dashes have special meaning (and not an not in pure algebraic notation) maybe messaging can improved.

Another example: h7 ⟹ d5

here I didn't put space between a square and dash.

[mujx]

Thanks for the feedback! I agree, I don't think it's clear what you need to set on the input.

Does it make sense to accept all of the following inputs (e.g for your second example)?:

• h7,f6,d5
• f6,d5 (skipping the fist square)
• h7-f6-d5
• f6-d5 (skipping the first square)

[gyermolenko]

• I think skipping first square (where knight is at) is a good idea.

• For dashes vs commas I think it is best to :

  • choose only one (easier to support, and it is good for consistency)
  • advertise it explicitly via hints and examples
  • use the same notation if it applies for other exercises

• to not pay attention to spaces when possible (h7,f6 equals h7, f6 or h7-f6 equals h7 -f6 whatever separator is used)

If UI form change can be also considered -- here is another suggestion.

• Draw as many inputs as "max steps" are
• draw first square name somewhere before these input fields
• draw last square somewhere after Like

  a1
  [  ]
  c1

  or

  a1
  [  ] 
  [  ]
  d3

  Although it contradicts the task of fitting path into "max steps" and asks for solutions with exact number of steps

[gyermolenko]

"Find the checks exercise" has similar nuance of notation but in a way it is completely different. For it I would expect regular algebraic notation for a move to be accepted. As opposed to a knight path where series of moves do not have standard notation and new one needs to be invented.

Example: White: Qa4 Black: Kc3 Rg5