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December Chess Puzzle Answer Key

 
Week 1 - Carissa Yip VS Justin Wang
 
 
Black To Move
 
White: Carissa Yip
Black : Justin Wang
 
IM Saint Louis Invitational 2017
 
A: 18... Nf4 19. Rg1 Bxe5 20. Nxe5 Qxh4 21. Bg3 Nxg2+! 22. Rxg2 Qh1+ 23. Kd2
Qxg2 24. Ng4 h5 25. Qe1 Rae8 26. Ne5 Rf6 27. a4 Ba6 28. Nd7 Rf3 29. Bh4 Qg4 30.

Ne5 Qf4+ 31. Kc2 Rh3 32. Bg3 Qf5+ 33. Kd2 h4 0-1
 
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Week 2 -  Carissa Yip VS Sabina Foisor
 
 
Black To Move
 
White:Carissa Yip
Black: Sabina Foisor
 
IM Saint Louis Invitational 2017
 
 
A: 59... Qb5+ 60. Qxb5 g6# 0-1
 
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Week 3 - Matthew Larson VS Carissa Yip
 
 
Black To Move
 
White: Matthew Larson
Black: Carissa Yip
 
 
IM Saint Louis Invitational 2017
 
A: 19... Ba6 20. Qxa6 Qxf3+ 21. Qe2 Qxh1 22. Kc2 Na4 23. Rb3 c4 24. Rb4 Rxb4
25. cxb4 Rb8 26. a3 a5 27. Kc1 axb4 28. Bxb4 Qg1 29. Kc2 Rc8 30. e5 dxe5 31. d6

Qd4 32. d7 Qxd7 33. Qxe5 Rd8 34. Qe2 Qd4 35. Kb1 Qd1+ 36. Ka2 Qb3+ 0-1
 
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Week 4 - Mauricio Arias Santana VS Matthew Larson 
 
 
Black To Move
 
White: Mauricio Arias Santana
Black: Matthew Larson
 
 
IM Saint Louis Invitational 2017
 
A: 45... Rxc6 46. Qa2 Rc1+ 47. Kg2 Qb5 48. Ra3 Ng5 0-1
 
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Week 5 - Annie Wang VS Lefong Hua
 
 
White To Move
 
White: Annie Wang
Black: Lefong Hua
 
 
IM Saint Louis Invitational
 
A: 37. Bxe5 Rxe5 38. Rg4 Rg5 39. Bd7 Rxg4 40. Bxg4 Kg8 41. Qc8+ Bf8 42. Be6
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