An example tells more than a thousand words. Here is a red surprise attack, yellow makes a big mistake - and nearly repair it, blue wins finally. Please excuse, if we haven't seen a checkmate in three. This was a game of amateurs. For us it was important, not to overview the many checkmates in one.
The use of the coordinate system for notation is explained in the chapter The III-COLOR-Chessboards. A name or a IOK (international opening keys) for the opening is hardly given (perhaps B53/B01). Yellow is playing a kind of sicilian against red, while blue prefers a modern defense against the red scottish e-pawn and the yellow english c-pawn. The game was played the 12th of october 2001 by: red - Michael Sanockyj, yellow - Torsten Berking, blue - Peter-René Töttger.
1. Ie2-e4, IIc2-c4, IIId2-d3
2. NIg1-f3, IId2-d3, NIIIg1-f3
3. Id2-d4 (? the e-Bauer is attacked), IIc4:Id4, NIIIf3:Ie4
Red invests 2 pawns for a quick development and continues as agressive as he has begun. Dangerous!
4. QId1:d4 (? better N:d4 I think!), NIIg1-f3, NIe4-IIIf3(?)
The blue defeat means a loss of tempo. Red and yellow protected the blue knight each other.
5. QId4-a4 ++, BIIc1-d2, BIIIc1-d2
A really seldom incident in STAR: red checked both opponents...
6. QIa4-b3, QIId1-c2, IIIe2-e3 (? better Qc1 I think!)
7. QIb3:IIIb2, QIIc2:Ic2, NIIIb1-c3
8. BIc1-e3, IIe2-e3, RIIIa1-b1 (!)
9. QIIIb2-IIIa3, BIIf1-e2, BIIIf1-e2
10. BIf1-e2, BIId2-c3, NIIIc3-Ib4 (! attacks both queens)
11. QIIIa3:IIIa2, QIc2-IIg3, 0-0
12. 0-0, IIh2-h3, RIIIf1-e1
13. NIb1-c3, NIIf3-d4, IIIc2-c4 (!)
Blue protects the NIb4, attacks the yellow NIId4 and locks out to the red QIIIa2.
14. RIa1-d1, NIId4-c2, BIIIe2-f1
15. Ia2-a3, NIIb1-d2, NIb4-IIIc3
16. QIIIa2-IIIa3, IIf2-f4 (! surprise), RIIIb1-b3
17. QIIIa3-Id3, 0-0-0 (?! big surprise), QIIId1-e2
18. QId3-c2 (!? the queen has made 9 moves as yet), QIIg3-f2, RIIIe1-a1
19. RIf1-e1, KIIc1-b1, RIIIa1-b1
20. BIe3-c1, IIg2-g4 (! against both opponents), IIIh2-h3
21. BIe2-f1, IIg4-IIIg4 (! wow, attack), IIIh3:g4
22. Ib2-b4 (?! against yellow), IIf4:IIIg4, NIIIf3-h2
23. NIc3-e4, IIh3-h4, IIIc4:Ib4
24. Ia3:b4, NIId2-b3, NIIIc3:Ib4
diagram: Meanwhile the opening part of the game is over. Still all officers are on the boards. Red has only 3 pawns left indeed but open lines and strong activity. Yellow has the most pawns, even two connected pawns in the center, but they cannot be protected by pawns from the flanks. The yellow pieces act against both opponents. The yellow king seems to be save in the long castle, but the open queenside is declared a state of siege. There blue has built a rook battery on the b-line, while his knight outpost occupies the red queen. The blue center is strong because of the connected pawn chain. On the other hand a bishop and a knight are locked in the own camp, and his king is in danger because of the potential yellow attacks. The red king too cannot feel save on the kingside. It looks, as if yellow has the best chances, but...
25. QIc2-d2, RIId1-g1 (??? great mistake), NIb4-IIId4
26. NIe4:IId3, BIIe2:d3 (?! what else), NIIId4:IIc3+ (!!)
Blue diplomacy - better to give away the strong knight but to get in trouble with a red-yellow coalition.
27. QId2:IId3, IIb2:c3 (?! again what else), BIIId2-IIa4
28. QIId3:IIc3, NIIc2-d4, IIIg2-g3
29. NIf3-IIe4, QIIf2-e1(?), BIIIf1-g2 (! looks greedy for IIa1 and the red QIIc3, that seems to be enough compensation for the given away knight.)
diagram: Five moves later the yellow position is a ruin. Both red and blue are broken into the yellow castle. The red space of action is frightening, and the blue rook battery not less!
30. NIIe4-IId2+ (now the yellow queen falls), QIIe2:d2, QIIIe2-c2 (! taking the c-line)
31. QIIc3:IId2, KIIb1-a1 (? out of the frying-pan into the fire), IIId3-d4
and not BIIa4:IIb3, because red checkmates yellow with QIId2:IIa2!
32. RIe1:IIe3, RIIg1-d1, QIIIc2-Ic2
33. QIId2-IIc3+ (? the RId1 is attacked), KIIa1-b1, QIc2:Id1
34. Ig2-g3 (air-hole), NIId4-c2 (!! attacks both queens), BIIIg2:IIc3
diagram: It comes as it has to, or the QIIc3 checkmates the yellow monarch on IIa1. Yellow has solved his problem in a very elegant way! Suddenly he is back in the game, but the question is, how to defend his desolated king position?...
35. RIIe3:IIc3, RIId1:Id1, NIIIh2-f1 (! activation)
36. BIc1-f4, RIIh1-c1, RIIIb1-c1
37. RIIc3-Ic1 (?! offers a circle change of rooks), TId1-IId1, TIIIc1-e1 (refused)
38. BIf1-h3, RIId1-d4, BIIa4:IIb3
39. BIf4-IIIc2, IIa2:b3, RIIIb3:IIb3+
40. BIh3-g2, KIIb1-a1 (?! better may be KIIa2), RIIIe1-a1+
diagram: It looks as yellow is at his end and blue wins, but suddenly and unexpected there is a rescue, because red on move can help...
41. BIg2-f1 (! covers the square IIa3 against blue), NIIc2-a3 (! yeah, that's it), NIIIf1-d2 (! ahead)
42. RIc1:IIc1+, KIIa1-a2, RIIb3-IIIb2
43. BIIIc2-If4, RIId4-d2, NIIId2-b3 (! and ahead)
44. BIf1-g2, RIId2-Id1+, NIIIb3-IIc4 (! the knight is the dominator, red has to move out of the yellow check)
45. BIg2-f1, RId1-IId4, RIIIb2-IIb2+
46. RIIc1-IIc3 (!), KIIa2-a1, RIIIa1-c1 (!)
47. RIIc3-IIc1+, NIIa3-b1, RIIIc1-a1+
48. BIf1-IIa3, RIId4:c4 (tries to cut the gordeon knot), RIIb2-IIb3
49. RIIc1:IIb1+ (?? the loss), KIIa1-a2, RIIIa1:IIa3 #
50. Now red has no chance to prevent yellow against the blue checkmate.
conclusion: Blue wins! Red and yellow loose in common! It is a hot dance, isn't it?
For sure, we could have made some "better" moves here or there, but of cause, we cannot play the game of chess better. The main thing is, you have learnt about to handle the coordinate system, the (admittedly difficult readable) diagrams and some traps of this game.
Now here follows a real unusual triangle game with a furious checkmate final. Red prefers a Larsen-Opening (A00) against a central symmetric defense from yellow and blue. I use the short notation for this example. The "white" moves are documented. The game was played the 11th of july 2003: red - Michael Sanockyj, yellow - Peter-René Töttger, blue - Heinz Kunitschke. This was the third triangle III-COLOR-CHESS game ever played at all.
1. b3, Nf3, Nf3
2. Bb2, d3, d3
3. Nf3, e4, e4
Yellow and blue don't give red difficult exercises by playing symmetrically. But now the symmetry gets broken.
4. d3, Be2, Nc3
5. e4, Bg5 (?!), Be2
6. Be2, B:f6, B:f6
Yellow wants to weaken both kingsides, but splits his pair of bishops for this.
7. 0-0, c3, 0-0
8. c4, Qc2, Be3
9. Bc1, 0-0, Qb1
The king's positions are still symmetrical, because of the small castelings. Every attack is directed against both opponents. It seems to be better from the strategic point of view to strive for unsymmetrical positions, because the game will be more complicated to calculate for the opponents. When we played the match this aspect was not clear to us yet.
10. f4, Nbd2, b4
11. c:b5, Rad1, Qb3+I
12. Kh1, Nc4, Q:b4
13. d4, Ne3, Qb3
14. d5, Nd5, B:d4
15. e:d5, Rfe1, Ne2
16. Nc3, a3, Rad1
17. g4 (?!), e:f5, g4 (?!)
Now the fight for the kingside gets started.
18. Bf3, f:g6 ep, f:g3
19. g4, Nd2, Bg2
20. h4, Ne4, Nf4
21. h5, Bf1, Nh5
22. h6, Ng3, Bh1
23. Bb2, Qd2, Rf5
24. Ne4, Qc1 (? too passive, Se4 may be better), Nf6+II
25. Nf6+II+III (?? looses a piece without compensation), g:f3, Rdf1
26. Qd3, Ne4, R:f6
27. Qe2, Qh3+I, R:f7
28. Kg1, Ng4 (?? that attacks blue indeed, but it is chess blindness...), R:f8!#I
conclusion: Yellow had to be moved N:f2 in the 28th move to keep on playing. So blue wins with a remarkable checkmate inclusive double check against both opponent kings and uses clever the yellow attack against the red monarch to his own profit.
Now it is on you to enrich the III-COLOR-libary. Send me your games, if you like to. Perhaps one day I will build a database.