'Characteristic Puzzles in the Opening' series

Here are some chess puzzles from the games of Kaido Kulaots. The color disk on the diagram indicates who moves first.

Solutions are between the brackets under each puzzle.
Drag your cursor from one bracket to the other.

a)
White mates in 3.
Kaido Kulaots vs Balazs Szuk, Duisburg, 1992
r3k2r/6pp/p1b1Pp2/q1bN1Q2/8/1p6/PPP3PP/2KR1B1R w - - 0 1
[ Nxf6+ if gxf6 Qh5+ or if Ke7 Ng8+ ]

b)
Kaido Kulaots vs Arne Matthiesen, Copenhagen, 1996
3r1r2/p1k2pb1/1p1qp1pp/2p1N3/3P3P/P2RQ3/1PP2PP1/1K1R4 w - - 0 1
[ Nxf7 if cxd4 Nxd8 or if Rxf7 dxc5 ]

c)
Kaido Kulaots vs Jyrki Kiltti, Hyvinkaa, 1996
r3k2r/1pqb1ppp/p3pn2/2b1N3/3Q1B2/2N5/PPP2PPP/R4RK1 w kq - 0 1
[ Nxd7 if Bxd4 Nxf6+ ]

d)
White mates in 5.
Kaido Kulaots vs Hans Koch, Deizisau, 1997
4r1rk/2q2ppp/p3p3/1p1p2N1/3B1P2/1B4R1/PPP3PP/4R1K1 w - - 0 1
[ Rh3 ]

e)
Kaido Kulaots vs Bjorgvin Jonsson, Elista, 1998
1q6/5pkp/1p4p1/2n5/3NQ3/1Pr4P/5PP1/R5K1 w - - 0 1
[ Nf5+ if gxf5 Qd4+ or if Kf6 Qe7+ Kxf5 g4+ Kf4 Kf6+ ]

Kaido Kulaots Puzzles, Part II.
The color disk on the diagram indicates who moves first.
a)
Kaido Kulaots Sandor Videki, Paks, 1999
r3knr1/1bq1p1bR/pn1p2p1/6P1/1R1NP3/2N1BQ2/1PP2P2/4K3 w - - 0 1
[ Rxg7 if Rxg7 Qxf8+ Kxf8 Ne6+ w/Nxc7+ & Bxb6 or if Rh8 Qf7+ Kd8 Ne6+ & Bxb6 ]

b)
Kaido Kulaots vs Hillar Karner, Parnu/Tallinn, 2001
r3r1k1/1pb1q2p/p2Rp1p1/8/4P3/5Q1B/PnP1N2P/5R1K w - - 0 1
[ Bxe6+ if Kh8 Qc3+ Qg7 Qxg7+ Kxg7 Rf7+ ]

c)
White mates in 5.
Kaido Kulaots vs Daniel Hersvik, Bergen, 2002
r7/P1n3pk/2N3p1/1qb5/1p1p1P2/5QP1/1B4K1/R7 w - - 0 1
[ Rh1+ Kg8 Qb3+ ]

d)
Kaido Kulaots vs Mark Bluvshtein, Gausdal, 2002
2r5/p4pk1/1p1Rpnpp/7P/2P3Pq/P1B2Q2/2P2P2/5K2 w - - 0 1
[ Rxe6 if fxe6 Qb7+ Kf8 Qxc8+ Ne8 Bb4+ ]

e)
Kaido Kulaots vs Jakov Geller, Moscow, 2002
r1b1k2r/ppppnppp/2n5/2b5/3NP2q/2N1B3/PPP2PPP/R2QKB1R w KQkq - 0 1
[ Nf3 if Qh5 g4 ]

See 3 moves ahead from wtharvey.com

Kaido Kulaots Puzzles, Part III.
The color disk on the diagram indicates who moves first.
a)
Kaido Kulaots vs Tomas Hutters, Gausdal, 2003
4k1r1/1p1b1pb1/p2Q4/4p1p1/P3Pn1p/2q1BP1P/2P3P1/R4R1K w - - 0 1
[ Bc5 if Bf6 Rad1 or if Bf8 Qb8+ mates ]

b)
Kaido Kulaots vs Geir Tallaksen, Gausdal, 2003
4qk2/1b4b1/p3B3/1p2p1pQ/P7/1P2R1N1/5PPK/2r5 w - - 0 1
[ Rf3+ Bxf3 Qxf3+ Ke7 Nf5+ Kd8 Qa8+ ]

c)
Kaido Kulaots vs Simon Kuemin, Istanbul, 2004
7r/pp3qk1/6p1/3pPpQ1/2pP1K2/P1P5/2P4R/8 w - - 0 1
[ Qf6+ ]

d)
White mates in 2.
Kaido Kulaots vs Felix Levin, Gausdal, 2006
r7/6R1/ppkqrn1B/2pp3p/P6n/2N5/8/1Q1R1K2 w - - 0 1
[ Qb5+ ]

e)
White mates in 5.
Kaido Kulaots vs Eduard Porper, Gausdal, 2006
r1b2r1k/p6p/1p3pnQ/3BRn2/8/P4N2/1Bq2PPP/R5K1 w - - 0 1
[ Re8 if Ng7 Ng5 ]

f)
Kaido Kulaots vs Artur Kogan, Puhajarve, 2017
4r1k1/pp3bpp/8/2r2p2/5P2/P2BRQ2/1qP3PP/5R1K w - - 1 0
[ 1.Rxe8+ Bxe8 2.Qe3 if 2...Rc8 3.Qe6+ ]

g)
Black mates in 2.
Parham Maghsoodloo vs Kaido Kulaots, Moscow, 2019
1r4k1/5p2/3p3p/p2P2pP/4B1P1/1r3P2/KPR4Q/4q3 b - - 0 1
[ 1...Ra3+ ]

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