index 2012
Letter #09 -  2013

Sub:    Kasparov vs. Deep Blue game 2
03/11/13  04:55:34 PM EDT

From:  Ryan

After resigned game #2 against Deep Blue, later analysis showed that Gary Kasparov could have drawn this game by perpetual check starting with: 45...Qe3 46.Qxd6 Re8! 47.h4 h5.

What is your opinion on this?

Thank you.

Dear viewer,

Maybe the following statement made by Gary Kasparov after the game can somehow shed some light on this issue:

“I trusted Deep Blue calculations. I assumed that if the machine allowed me a move such as Qe3 at the end, it had calculated everything that could follow and found wins, so I didn't even bother checking it. Costly error, as I soon found out.” - Kasparov

Some Chess analysts found three possible variations that could have saved Kasparov from losing the game:

45...Qe3! 46.Qd7+ Kg8 47.Qxd6 Rf8 48.Qe6+ Kh7 (draw)

45...Qe3! 46.Qxd6 Re8! 47.h4 h5 48.Bf3 Qc1+ 49.Kf2 Qd2+ 50.Be2 Qf4+ 51.Kg1 Qe3+ 52.Kf1 Qc1 (draw)

45...Qe3! 46.Qxd6 Re8! 47.Bf3 Qc1+ 48.Kf2 Qd2+ 49.Be2 Qf4+ 50.Ke1 Qc1+ 51.Bd1 Qe3+ 52.Kf1 Qc1 53.Ke2 Qb2+ 54.Ke1 Qxc3+ 55.Kf1 Qc1 56.Ra7+ Kg8 57.Ke2 Qb2+ 58.Ke1 Qc3+ 59.Kf1 Qc1 60.Ke2 Qb2+ 61.Kf1 Qc1 62.Ke2 (draws by perpetual check)

Below, you may play Kasparov’s position he was in before he resigned against the computer. You have black pieces and need to move your Queen to square e3. If the computer moves other than the moves shown above, you should still be able to check the white King perpetually.

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