Solution:
a)
1.Sf1-e3 ! zugzwang.
1...Kd4-c5
2.d3-d4 #
1...Kd4-e5
2.Bd8-f6 #
1...Kd4*e3
2.Bd8-b6 #
1...g5-g4
2.Bd8-b6 #
b) wRa6-->g6
1.Sb1-c3 ! zugzwang.
1...Kd4-e5
2.d3-d4 #
1...Kd4-c5
2.Bd8-b6 #
1...Kd4*c3
2.Bd8-f6 #
1...g5-g4
2.Bd8-f6 #
2.Sc3-b5 #
References:
-
Eduardo Sadier Twomovers Collection (pgn)
[Event "?"]
[Site "Sachove Umenie 1978"]
[Date "1978.??.??"]
[Round "?"]
[White "VALUSKA Jan"]
[Black " #2"]
[Result "1-0"]
[SetUp "1"]
[FEN "3B4/3B4/R6p/K5pR/3k4/3P2P1/2P1P3/1N1Q1N2 w - - 0 1"]
1. Ne3 1-0
-
Problemiste PBM Collections (pbm2py)
Author VALUSKA, Jan
Origin Sachove Umenie 1978
Title 3° -4 Mention
Remark text:
Remark text: a) Diagram
Remark text: Solution: 1. Se3! waiting
Remark text: 1. ... Ke5 [a] 2. Bf6 [A] #
Remark text: 1. ... Kc5 [b] 2. d4 [B] #
Remark text: 1. ... g4 [c] 2. Bb6 [C] #
Remark text:
Remark text: b) Rwa6->g6
Remark text: Solution: 1. Sc3! waiting
Remark text: 1. ... Ke5 [a] 2. d4 [B] #
Remark text: 1. ... Kc5 [b] 2. Bb6 [C] #
Remark text: 1. ... g4 [c] 2. Bf6 [A] # dual Sb5,
Remark text: Lacny cycle
Remark file://Valuska.pbm/85
Stipulation #2
Forsyth 3B4/3B4/R6p/K5pR/3k4/3P2P1/2P1P3/1S1Q1S2
Twin move a6 g6
-
Leo Mano Forsyth Collection (forsyth)
[Event "#2"]
[White "VALUSKA, Jan"]
[Site "Sachove Umenie 1978"]
[Result "3° /4e Mention"]
[ECO "val7846"]
[Comm2 " &!06&"]
3B4/3B4/R6p/K5pR/3k4/3P2P1/2P1P3/1N1Q1N2
-
Leo Mano Forsyth Collection (forsyth)
[Event "#2"]
[White "VALUSKA, Jan"]
[Site "Sachove Umenie 1978"]
[Result "3° -4 Mention"]
[Comm1 "a) Diagram Solution: 1. Se3! waiting 1. ... Ke5 [a] 2. Bf6 [A] # 1. ... Kc5 [b] 2. d4 [B"]
[Comm2 " &!06&"]
3B4/3B4/R6p/K5pR/3k4/3P2P1/2P1P3/1N1Q1N2
-
Gabriel Török Twomovers Collection (csv)
"VALUŠKA JÁN";"ŠACHOVÉ UMENIE";1978;"3-4u";"2x";"Je3";"a5";"d1";"a6";"h5";"b1";"f1";"d7";"d8";"c2";"d3";"e2";"g3";;;;;"d4";;;;;;;;"g5";"h6";;;;;;
