HOP 5: Moscow (55.8 N, 45.6 E) [SOLVED!]

WHITE H3 is my answer

1 Like

is it Black E5, looks like to me

1 Like

It should be White G6

1 Like

It should be white H2

1 Like

black G3 IS MY ANSWER

1 Like

it should White on g3

1 Like

white g7
jdjdhdjskfhdjsjsj

1 Like

My new answer is white 6g

1 Like

black horse d4 :upside_down_face: :upside_down_face:

1 Like

white e8 maybe???????

1 Like

white g7
//////////////////////////

1 Like

Black and off the board

1 Like

I think it is white G2

1 Like

white c7 - my answer

1 Like

Congratulations to t0b for a lightning fast solve (we’ve spoken privately and I’m happy this was genuine).

For the interested, the answer is a white knight on h8.

Black is missing both knights and a black squared bishop. White is missing both knights and a pawn. The pawns on b6, g6 and c4 have captured four pieces between them - two white and two black. The black bishop never moved, because the pawns hem it in. It must have been captured on its home square. The white pawn can’t have been captured by a black pawn, because it would need to capture to leave the h-file, and there’s no missing pieces left to do that.

So the pawns captured all four knights. But we’re told there’s a knight on the board. So it must be the promoted h pawn. Since it had no pieces to capture, it promoted on h8, where it remains trapped by the pawns on f7 and g6.

Like I said, the players weren’t playing well, but it’s a legal position!

1 Like

It is white b3 I think

1 Like

That is amazing. Great puzzle, and congratulations to @t0b

1 Like

Black knight at f7 it is the answer

1 Like

Thanks a lot. Appreciated.

1 Like

Thanks! These kinds of logic puzzles are called “retrograde analysis” or “retros” for short, are there are some really amazing ones out there.

1 Like