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Guy Mazzoni vs Juan Minaya
Tel Aviv Olympiad Final-C (1964), Tel Aviv ISR, rd 10, Nov-21
Sicilian Defense: Richter-Rauzer. Neo-Modern Variation (B68)  ·  1-0



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Kibitzer's Corner
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Jul-07-14  zb2cr: This one is for all those who have ever complained that the <> Monday puzzle is always a Queen sac. This time, a Queen sac is a loser. The winning move is 30. Rg7, threatening Qxh7# next move. If Black plays 30. ... Bxg7, Qxg7#. Nay othe move is met by 31. Qxh7#.
Premium Chessgames Member
  skeptic50: Expecting the Monday morning Q-sac, then saw Rg7. Got it in about 15 seconds (my personal best).
Premium Chessgames Member
  Once: Hello. My name is Juan Manuel Minaya Molano. You killed my rook. Prepare to die.

It's an interesting little puzzle. At first glance, the bishop on f8 seems to be doing a great job in holding back the white attack.

Which is just as well, because the rest of the black army is hiding behind a wall of pawns.

It turns out that the bishop is overworked. It has to prevent Qg7# and Rg7-Qxh7# The problem is that the poor cleric can only capture one piece landing on g7 - queen or rook. But it can't capture both.

What black really needs is another dark squared bishop sitting on e9.

As to what the tactic is called, might I humbly suggest that it is a form of reloader or substitution. White sticks one attacking piece on g7. When that is taken he replaces it with another attacker.

It's a bit like starting a sword fight right handed and then later switching to southpaw ... or whatever the leftie version of swordfighting is called.

Premium Chessgames Member
  gawain: Very clever conclusion. 30 Rg7! is unanswerable.
Premium Chessgames Member
  Penguincw: I got the puzzle, but I don't think it's common for a Monday puzzle to have a quiet move (a move that doesn't capture a piece or give check).
Jul-07-14  dfcx: 30. Rg7 and mate next.

On move 27, Crafty found the following alternative,

27. Qxh7 Ke8 28. Rg8+ Bf8 29. Rxf8+ Kd7 30. Bb5+ Qd6 31. Qxf7#

Jul-07-14  sfm: <shaikh123: what's wrong with 30.Qg5?> Nothing. 30.-,Bh6 31.QxB,Rg8 32.Rg7 (again!) and mate next move.
Jul-07-14  Castleinthesky: Slightly longer than the usual Monday morning, I'll give it a Tuesday.
Premium Chessgames Member
  kevin86: Gadzooks, I missed a Monday.

However, I cry foul! Queens are supposed to be sac-ed on Mondays- not rooks. AND NO coy, non forcing or non-checking moves either!

Jul-07-14  BOSTER: Strong Guy this guy, took Many.
Jul-07-14  jdc2: I would call the first move an interference, since it blocks the bishop from taking the queen. This creates the threat Qxh7#, forcing the bishop deflection to a square where it can be captured with mate.
Jul-07-14  PJs Studio: I can't say I've seen this exact motif before.
Jul-07-14  Chess Dad: When I see puzzle positions like this, where the winning player is down a bunch of material at the start of the puzzle, I wonder "When did he see it? Are we 5 steps into a big sacrifice combination?"

And in this case, I think White saw the winning combination back on move 25 with the Nf6+ sacrifice, which was followed shortly thereafter with the 27. Rg8+ sacrifice.

Premium Chessgames Member
  chrisowen: To do the damage g7 I mate uniform appraisal the inclusive road up g7 and alf h7 way out there was to shin 24...Kg8 a focal point focus again I coffer tithe ground aim hint heave f6 knight line h5 chest f6 occular wisdom cone garnered monarch g8 clause a get-home bound I gut-offs eg ment quarter back at he goof too do the deed at aims 24...exf5 bark fetch as tender h7 spot it seem in sense again manage h7 target huffle along blacks comedy of errors pawn had at borough in side f5 am enough thought to be blink on at cycle e6 had to stop the head I f6 I culture band bind to bond.

24...exf5 lane flock qued up on time fetch as feint I fees paid and duel feels in off to engage g7 if to enter h6 cross and mix ok next cooked off tingle a mind at minds 25...gxf6 mate in four cage see general get caught g7 in away scotty eg be free good ay be find stub effect g7 decent stab effort basic lide box un peels f6 cringe fluffs the feckle chains safe f5 effect toffee in my pocket ever age came suffer tile ground g7 as win lifts up lick enact rook wheels at I g1 brave 25...Kf8 get cave in eg came clog entrance fatefuls at frighten the bejeesus am boot fashions the parade off to head jar fanciful be ok forceful crum rich effort have much efface fob off in flighted mate in 1 about he fly up f6 coot like goose sell trail at good game cor governor effect safe to give get ables eg guffaw at g7 wins am glorify shouts monarch ger of h6 at gg mack return g7 in came light a good turn it aether in alive at black f8 monarch eg win reprieve its no matter pip free head above the water h6 it suffice to have say knock it fathom again from lined it edge in mind g7 it a big haven am be no doubt it whoosh on father g7 as the round first rent up ghost a good 30.Rg7 Bxg7 31.Qxg7#.

Jul-07-14  M.Hassan: < SimonWebbsTiger: @<M.Hassan>

try looking at 25. Nf6 Kf8 26. Qxh7 Qd8 and ideas like 27. Be2 and then g5-g6.>

Looks like still Black holds:
25.Nf6+ Kf8
26.Qxh7 Qd8
27.<Be2> Bd6
28.Qh8+ Ke7
29.Qxg7 Qh8
30. What can g5-g6 do?
Am I missing something?

Jul-07-14  Squire49: Quite a challenge for Monday. Took about 1 Minute to spot Rg7.
Jul-07-14  kevinatcausa: <What would you classify this tactic, e.g. an attraction?>

In 15th century Britain there was a Archbishop by the name of John Morton who was responsible for collecting taxes. His argument was that if you lived extravagantly, you obviously had the money to spare for your taxes. Conversely, if you lived modestly, you obviously were saving enough money to be able to spare some for taxes.

In Bridge (the card game), people use the term Morton's Fork because of this to describe a situation where you present the opponents with a choice of plays, each of which leads to their demise in a different fashion.

This is like the Morton's Fork of chess.

Jul-07-14  gars: <kevin86>, you are not alone. I missed it too!
Premium Chessgames Member
  Sneaky: Queen sac Monday! Easy peasy! Just play 30.Qxh7+ and ...Kxh7 is the only move, then I just grab my rook and slide it over to h3 for the mate. Wait a minute... where's my rook? I thought I should have two rooks.

Oh dear, it's not a queen sac after all. Sheesh. What are they trying to to do us, make us think on a Monday?

Jul-07-14  PJs Studio: Hah! Good one Sneaky!
Jul-07-14  BOSTER: < Sneaky: I thought I should have two rooks >. With two rooks you can win faster.
After 26.Qh6
if Bf8 27.gxf6+ 28.Kh8 Rg7
if Kh8 27.gxf6 Rg8 28.Qxh7+ Kxh7 29.Rh4#.
Jul-07-14  Cheapo by the Dozen: What could Black possibly have been thinking on 23 ... Bc5?? He removed a defender so as to force White to make an attacking move. Huh??
Premium Chessgames Member
  PawnSac: the only candidate... Rg7
Jul-07-14  thegoodanarchist: < Castleinthesky: Slightly longer than the usual Monday morning, I'll give it a Tuesday.>


Jul-07-14  sorokahdeen: This is funny. I never thought of Rg7! I just saw Qg5 which forces black to move the bishop to prevent mate on g8 allowing mate on g7.

This does prolong the game by allowing a defense by ...Bh6 and ...Rb8, but *then* Rg7 wins again.

It's amazing how little black had in the way of counter play.

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