The following position is altered from a Marshall gambit game I played long time ago. My opponent won material at the cost of neglecting the critical a8-h1 diagonal, which exposed his king to serious mate threats.

Can you find the correct path to victory? rest assured, if you make a mistake you will lose the game.

epic.!!!..this one puzzle is just fantastic...i can't even think of giving such a mate during the game...

@ shoopi... play with me a game of chess, please!!...it wud help me alot...

Hard.. i made the last four moves and the first  move but the other four i had to click help

Qh3 leads to forced mate in two...Qh3 f3 Bxf3 Kf2 Qg2#

yeap!

1... Qh3 looks good but white can defend against mate, and win.

1... Qh3 2. f3 Bxf3 3. Re2 Bxe2 4. Nd2.

It's in the move list.

Keep this way. I'm deeply stunned and full of delight that you were able to drive me back to the times when i've heared about a8-h1. Astonishing and amazing...I supossed that you have nothing else better to do.

nice.

Not the hardest puzzle, but nice rook sac.

this is the first position I've seen that so many perfect moves are required

I've checked with the computer, the only "imperfect" move that doesn't lose is 8...Qc2+ which is nonsense because it repeats the position

other moves just lose

this is the variation if black plays 5... Qxe1+ (surprisingly, white wins!)

This analysis is performed by houdini.

The side line (in 8.Kd4?) is suprisingly complex, but leads only to a draw (and a win for black if white tries to force a win)

The main line (in 8.Kb4!) is surprisingly simple, with the deciding factor to be that unexpected back rank mate and the hanging bishop

Note: this analysis is probably YET incomplete! (the lines are to complex) so there are some "cut offs" that I decided not to show to the end

That is a fantastic line I haven't analysed too deeply. Brilliant indeed, thanks!

Great puzzle...simply great.