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Knight Work

Knight Work. Charlie Keen. One move. * * * * N * * * *. Edge effects 1. N * * * * * N * * * * N. Edge effects 2. * * * N * * * * * * N *. Coverage. 2 3 4 4 4 4 3 2 3 4 6 6 6 6 4 3 4 6 8 8 8 8 6 4 4 6 8 8 8 8 6 4 4 6 8 8 8 8 6 4 4 6 8 8 8 8 6 4

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Knight Work

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  1. Knight Work Charlie Keen

  2. One move ** ** N ** **

  3. Edge effects 1 N * ** * * N* ** *N

  4. Edge effects 2 ** * N * **** * N *

  5. Coverage 2 3 4 4 4 4 3 2 3 4 6 6 6 6 4 3 4 6 8 8 8 8 6 4 4 6 8 8 8 8 6 4 4 6 8 8 8 8 6 4 4 6 8 8 8 8 6 4 3 4 6 6 6 6 4 3 2 3 4 4 4 4 3 2

  6. Development cuuuuuuuuC (rhb1kgn4} 70p0p0p0p} 6wD*Dw8wD} 5DwDwDwDw} &wDwDwDwD} 3Dw8wD*Dw} 2P)P)P)P)} %$NGQIBHR} v,./9EFJMV

  7. 2 moves: short pattern 1 2 ** N

  8. Coverage 2 2N2 2

  9. 2 moves: short pattern 2 * 2 N * 2 N *

  10. Coverage and impediments 22 N 22 * 4 N

  11. 2 moves short pattern 3 * 2 N *

  12. Coverage 22 22 N 22 22

  13. Octomino N

  14. cuuuuuuuuC (wDwDkDwD} 70w)wDw0w} 6wDqDn0w0} 5DwDNDwDw} &wDwDwDwD} 3DQDwDP)w} 2wDwDwDK)} %DwDwDwDw} v,./9EFJMV Zukertort - Englisch london (4), 1883 1.Qb5 Qxb5 2.c8Q+ Kf7 3.Qxe6+ Kxe6 4.Nc7+ Kd7 5.Nxb5 1-0

  15. cuuuuuuuuC (wDwDwDwD} 7DwDwDwDw} 6wDwDwDwD} 5DwDwDwDw} &wDwDwDwD} 3DwDwHwDp} 2wDwDwIwi} %DwDwDwDw}a v,./9EFJMV W #3 - B 1500 [Bonus Socius] 1.Ng4+ Kh1 2.Kf1 h2 3.Nf2# 1-0

  16. 2 moves long pattern 1 * N2 *

  17. Coverage N2 2

  18. 2 moves long pattern 2 N * * 2

  19. Coverage 22 N 22

  20. 2 moves long pattern 3 N * 2 NB just 1 transfer square

  21. cuuuuuuuuC (wDrDwDkD} 70p0b1wDp} 6wDn0wDwD} 5DwDwDwDw} &wDw)nHp)} 3DwDQDw)w} 2P)PDwDwD} %$wDwDRIw} v,./9EFJMV chernev-reinfeld 1949 1.Nd5 Qe6 2.Qxe4 Qxe4 3.Nf6+ 1-0

  22. Coverage 2 N 2 22

  23. All squares reachable in 2 moves 2 2 2 2 2 2 2 2 2 2 2 N 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

  24. 3 moves N 3 3

  25. Coverage 3 3 3 3 3 1 1 3 1 3 1 3 3 3N3 3 1 3 1 3 3 1 1 3 3 3 3 3 3 3 3 3

  26. 4 moves 44 N 44 4

  27. Access from d5 2 3 2 3 2 3 2 3 3 4 1 2 1 4 3 2 2 1 2 3 2 1 2 3 3 2 3N3 2 3 2 2 1 2 3 2 1 2 3 3 4 1 2 1 4 3 2 2 3 2 3 2 3 2 3 3 2 3 2 3 2 3 4

  28. Board access from b1 4 5 4 5 4 5 4 5 3 4 3 4 3 4 5 4 4 3 4 3 4 3 4 5 3 2 3 2 3 4 3 4 2 3 2 3 2 3 4 3 1 2 1 4 3 2 3 4 2 3 2 1 2 3 4 3 3N3 2 3 2 3 4

  29. Board access from a1 5 4 5 4 5 4 5 6 4 3 4 3 4 5 4 5 3 4 3 4 3 4 5 4 2 3 2 3 4 3 4 5 3 2 3 2 3 4 3 4 2 1 4 3 2 3 4 5 3 4 1 2 3 4 3 4 N3 2 3 2 3 4 5

  30. Access to anywhere in 4 moves * * * * * * * * * * * * * * * * * * * * * * * *

  31. Forks ** ** N ** **

  32. cuuuuuuuuC (wDkDrDwD} 70p0wDwDw} 6wDwDwDnD} 5DqDpDwDp} &wDw)r0wD} 3)w)wdQhP} 2w)wGw$Pd} %IwDNDw$w} v,./9EFJMV Exercise 1...Nh4

  33. Knight Studies DR

  34. cuuuuuuuuC (wDwDwDwD} 7DwDwDwDw} 6wDwDwDwD} 5DwDwDwDw} &pHwDwDwD} 3DwDwDwDw} 2wDKDwDwD} %iwDwDwDw} v,./9EFJMV No 103 [Carvajal 1889] 1.Kc1 a3 2.Nc2+ Ka2 3.Nd4 Ka1 4.Kc2 Ka2 [4...a2 5.Nb3#] 5.Ne2 Ka1 6.Nc1 a2 7.Nb3# Line

  35. cuuuuuuuuC (wDwDkDwD} 7DwDwDwDw} 6wDwDNDwD} 5DwDwDnDP} &wDwDwDwD} 3DwDwDwDw} 2wDwDwDwD} %IwDwDwDw} v,./9EFJMV No 114 [Cheron 1952] 1.Ng7+ Nxg7 [1...Kf7 2.Nxf5 Kf6 3.h6+-] 2.h6 Kf7 3.h7+- [3.hxg7 Kxg7=]

  36. cuuuuuuuuC (whwDwDND} 7DwDwDwDw} 6wDwDwDPD} 5ipDw0wDw} &pDwDPDwD} 3DwDwDwDw} 2KDwDwDwD} %DwDwDwDw} v,./9EFJMV 1942 [Rinck] 1.Ne7 Nd7 2.Nd5 b4 3.g7 +-

  37. cuuuuuuuuC (w1wDwDwD} 7DwDwDwDw} 6wDwDwDwD} 5DwDwDwDw} &wDwDkDwD} 3DwDwDNDw} 2wDwDwDwD} %IwDwDwDQ} v,./9EFJMV knight fork study - chekhover White combines threats of skewers and forks to win the Queen. 1.Ne5+ Ke3 [1...Kf5 2.Qh3+! Ke4 (2...Kf6 3.Nd7+) 3.Qf3+ Kd4 4.Nc6+; 1...Kf4 2.Qf3+ Kg5] 2.Qe1+ Kf4 3.Qf2+ Kg5 4.Qg3+ Kf5 5.Qg4+ Kxe5 6.Qg3+ Kf5 7.Qxb8 1-0

  38. cuuuuuuuuC (wDwDwDwD} 7DwDwDwDw} 6KDwDwDw0} 5DwDwDwDw} &wDwDwDwD} 3DwDwiwDw} 2NDwDwDwD} %DwDwDwDw} v,./9EFJMV Shamkovich (from Spanier) White to play and draw

  39. Knight Tours DR

  40. cuuuuuuuuC (wDw4n4kD} 7Dw1nDpgp} 6w0wDwDpD} 5Dw0w0wDw} &wDwDPDwD} 3DwDwGw)P} 2w)PHQ)BD} %$wDwDRIw} v,./9EFJMV Fischer,R - Ibrahimoglu,I [A07] Siegen Olympiad, 1970 [Emms] 18.Nb1! Qb7 19.Nc3 Nc7 20.Nb5 Qc6 21.Nxc7 Qxc7 22.Qb5 Ra8 23.c3 Rxa1 24.Rxa1 Rb8 25.Ra6 Bf8 26.Bf1! White's domination of the light squares remain. This bishop may be redeployed actively on c4 or b5. 1-0

  41. cuuuuuuuuC (wDw4wDkD} 70wDwDp0w} 6wDpDwhpD} 5gwDw0wDw} &PDwDPDwD} 3DqHwDPDw} 2w)wGQDP)} %DRDwDwIw} v,./9EFJMV Richardson - Sadler 1995 1...Ne8! 2.Be1 Nc7 3.Rc1 Ne6 4.Qc2 [4.Bf2 Nf4 5.Qc2 Qxc2 6.Rxc2 Bxc3 7.bxc3 Rd1+ 8.Be1 Rxe1+] 4...Qb6+ 5.Qf2 [5.Bf2 Nd4 6.Bxd4 (6.Qb1 Bxc3 7.bxc3 Ne2+ 8.Kf1 Qa6) 6...exd4 7.Nd1 d3+ 8.Qf2 Qb3 9.Kh1 Qxa4] 5...Nd4 6.Kh1 Qb3 ... 0-1

  42. cuuuuuuuuC (rDwDwDni} 70pDb4wDp} 6wDpDpDwD} 5DwDpDwDw} &wDw)wDwD} 3DwHBDw$w} 2P)PDwDP)} %DwIwDRDw} v,./9EFJMV Lasker,E - Pillsbury,H [A83] Paris, 1900 22.Nb1! Rae8 23.Nd2 e5 24.dxe5 Rxe5 25.Nf3 Re3 26.Ng5 Rxg3 27.hxg3 h6 28.Nf7+ Kg7 29.Nd6 Re7 30.Nxb7 ... 1-0

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