[Event "EG 50 AT, 2.prize"]
[Site "?"]
[Date "2016.??.??"]
[Round "?"]
[White "Østmoe, Geir Sune Tallaksen"]
[Black "Draw"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "BN5Q/2rP1P1b/7n/6p1/8/3p4/k4PPp/3n1K2 w - - 0 1"]
[PlyCount "41"]
[EventDate "2015.??.??"]

1. Bd5+ $1 ({Logical try:} 1. g4 $2 Ne3+ 2. fxe3 Rc1+ 3. Kf2 Nxg4+ 4. Kg3 Rg1+
5. Kh3 Be4 $1 6. Bxe4 h1=Q+ 7. Bxh1 Rxh1+ 8. Kxg4 Rxh8 9. Nc6 d2 10. d8=Q Rxd8
11. Nxd8 d1=Q+ 12. Kxg5 Qxd8+ 13. Kg6 {and because Black's king is on a2
instead of a1, Black wins by one tempo, for example} Kb3 14. e4 Kc4 15. e5 Qf8
$1 (15... Kd5 $2 16. Kg7 $1 Qg5+ 17. Kh7 Qf5+ 18. Kg7 {draws.}) 16. e6 Kd5 17.
e7 Qxe7 18. Kg7 Ke6 {wins.}) 1... Kb1 2. g4 Ne3+ 3. fxe3 Rc1+ 4. Kf2 Nxg4+ 5.
Kg3 Rg1+ 6. Kh3 Be4 $1 7. Qa1+ $1 ({Logical try:} 7. Bxe4 $2 h1=Q+ 8. Bxh1
Rxh1+ 9. Kxg4 Rxh8 10. Nc6 d2 11. d8=Q Rxd8 12. Nxd8 d1=Q+ 13. Kxg5 Qxd8+ 14.
Kg6 {and because Black's king is on b1 instead of a1, Black wins by one tempo:}
Kc2 ({or} 14... Qf8 {here or on the next move}) 15. e4 Kd3 16. e5 Qf8 $1 (16...
Ke4 $2 17. Kg7 $1 Qg5+ 18. Kh7 Qf5+ 19. Kg7 {draws.}) 17. e6 Ke4 18. e7 Qxe7
19. Kg7 Kf5 20. Kg8 Kg6 {wins.}) 7... Kxa1 8. Bxe4 h1=Q+ 9. Bxh1 Rxh1+ 10. Kxg4
Rh8 11. Nc6 d2 12. d8=Q Rxd8 13. Nxd8 d1=Q+ 14. Kxg5 Qxd8+ 15. Kg6 {and
because Black's king is on a1 instead of a2 or b1, White draws by one tempo:}
Kb2 16. e4 Kc3 17. e5 Qf8 18. e6 Kd4 19. e7 Qxe7 20. Kg7 Ke5 21. Kg8 {draws.}
1/2-1/2

[Event "Timman 65JT, 1.prize"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Østmoe, Geir Sune Tallaksen"]
[Black "Win"]
[Result "1-0"]
[SetUp "1"]
[FEN "1N5r/1pP3N1/1k1pPn2/8/2p5/2Pp4/1Kp5/6R1 w - - 0 1"]
[PlyCount "25"]
[EventDate "2017.??.??"]

1. Nd7+ Nxd7 2. Ne8 $1 (2. e7 $2 Kxc7 3. e8=Q Rxe8 4. Nxe8+ Kc6 {draws. Black
has enough counterplay with Nc5 coming up.}) 2... Rxe8 3. exd7 Re1 $1 {Prokeš
manoeuvre.} 4. c8=N+ $1 (4. Rxe1 $2 Kxc7 {draws, for example} 5. Re7 Kd8 6. Rh7
b5 7. Rh5 Kxd7 8. Rxb5 Kc6 9. Rh5 d5 {and White can not make progress.}) 4...
Kc7 5. Rxe1 d2 6. d8=Q+ $1 Kxd8 7. Re8+ $1 {Prokeš manoeuvre.} Kxe8 8. Kxc2
Kd7 9. Na7 $1 ({The c4 pawn is poisoned:} 9. Nb6+ $2 Kc6 10. Nxc4 d1=Q+ $1 11.
Kxd1 Kc5 {draws. Black follows up with b5 or d5 and will be able to exchange
White's last pawn.}) 9... Kc7 10. Nb5+ Kc6 11. Na3 b5 12. Kxd2 Kc5 13. Nc2 {
wins.} 1-0

[Event "TT Logical uncastling, prize"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Østmoe, Geir Sune Tallaksen"]
[Black "Win"]
[Result "1-0"]
[SetUp "1"]
[FEN "r3k3/4p3/P2pP3/3P4/p4RP1/2R5/Pp1pPP2/4nK2 w q - 0 1"]
[PlyCount "17"]
[EventDate "2017.??.??"]

1. Rh3 $1 {Plan 2.Rh8#.} O-O-O 2. a7 (2. Rb4 $2 Nf3 $1 {wins.}) 2... Kb7 (2...
Kc7 3. Rc3+ Kb6 4. Rb4+ Ka5 5. Rb8 {wins.}) 3. a8=Q+ $1 (3. Rb4+ $2 Ka8 $1 {
wins.}) 3... Rxa8 4. Rb4+ Kc7 (4... Ka6 5. Ra3 d1=Q 6. Raxa4+ Qxa4 7. Rxa4+ Kb6
(7... Kb5 8. Rxa8) 8. Rb4+ $1 (8. Rxa8 $2 Kc7 $1) 8... Kc5 9. Rxb2 {wins.}) 5.
Rc3+ Kd8 6. Rf4 Ke8 {The position is now the same as the initial position,
except that Black can not castle (and the a6 pawn is gone).} 7. Rh3 $1 {
Plan 8.Rh8#. Now 7...0-0-0 is illegal, otherwise it would have drawn: 8. Rc3+
Kb7 9.Rb4+ Ka6.} Kd8 8. Rc4 b1=Q 9. Rh8# {Logical uncastling: White makes an
initial threat which is prevented by Black's castling. Then White forces
Black's king and rook back to their original squares, and White repeats the
initial threat, which can not be prevented because Black can not castle.} 1-0

[Event "6th Internet Tournament UAPA, 1.prize"]
[Site "?"]
[Date "2018.??.??"]
[Round "?"]
[White "Østmoe, Geir Sune Tallaksen"]
[Black "Win"]
[Result "1-0"]
[SetUp "1"]
[FEN "6r1/8/3RPP2/P7/4K2k/6p1/b4p2/4R3 w - - 0 1"]
[PlyCount "21"]
[EventDate "2018.??.??"]

1. Rh1+ Kg4 2. f7 Ra8 3. Rd8 $1 Rxd8 (3... g2 4. Rg8+ {wins.}) 4. e7 Rd4+ $1 {
First Prokeš manoeuvre.} 5. Kxd4 Bxf7 6. Ke3 g2 7. Rh4+ $1 {Second Prokeš
manoeuvre.} Kg3 8. Rg4+ $1 Kxg4 9. Kxf2 Kf5 10. a6 Ke6 11. a7 {wins.} 1-0

[Event "Kondratyuk 70MT, 4.-5.prize"]
[Site "?"]
[Date "2018.??.??"]
[Round "?"]
[White "Østmoe, Geir Sune Tallaksen"]
[Black "Draw"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "5K2/8/7B/1B4P1/8/6k1/3p1b2/3r4 w - - 0 1"]
[PlyCount "11"]
[EventDate "2018.??.??"]

{[#]} 1. g6 Be3 $1 {Clearing the f-file for Black's rook.} ({Everything else
is too slow, for example} 1... Bd4 2. Ba4 Rf1+ 3. Ke7 d1=Q 4. Bxd1 Rxd1 5. g7 {
draws.}) 2. Bxe3 Rf1+ $1 3. Bxf1 d1=Q {Black sacrificed two pieces in order to
queen. Now it is White's turn to sacrifice two pieces in order to queen.} 4.
Be2 $3 (4. Bc4 $2 Qd8+ $1 ({or 4...Qd6+, but not} 4... Qf3+ $2 5. Bf7 Qxe3 6.
g7) 5. Kf7 Qc7+ {wins.}) 4... Qxe2 (4... Qd8+ 5. Kf7 Qd7+ 6. Kf6 $1 Qd6+ 7. Kf7
{draws.}) 5. Bf4+ $1 Kxf4 6. g7 {draws, as Black has no checks.} 1/2-1/2

[Event "Yerevan 2800, 4.hm, correction"]
[Site "?"]
[Date "2018.??.??"]
[Round "?"]
[White "Østmoe, Geir Sune Tallaksen"]
[Black "Draw"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "3r4/5P2/pR2P3/Pp5P/k1b3K1/2Ppb3/P3p3/1R6 w - - 0 1"]
[PlyCount "19"]
[EventDate "2018.??.??"]

{[#]} 1. e7 Rd4+ $1 {First Prokeš manoeuvre.} 2. cxd4 Bxf7 3. Kf3 Bc1 $1 4.
e8=Q $1 {Forcing the bishop away from c4.} (4. Rxc1 $2 d2 5. Rc4+ Bxc4 $1 {
wins.}) 4... Bxe8 5. Rxc1 d2 6. Rc4+ $1 {Second Prokeš manoeuvre.} bxc4 7.
Kxe2 c3 8. Rb1 c2 (8... Bxh5+ 9. Kd3 Bg6+ 10. Kxc3 Bxb1 11. Kxd2 {draws.}) 9.
Rb4+ $1 {Third Prokeš manoeuvre.} Kxb4 10. Kxd2 {draws.} 1/2-1/2

