MESON Chess Problem Database
Problem Display
PID: 239166 (2NQN3/1pn5/1Bk5/5K2/8/8/8/8 w - - 0 1)
Hermanson, Halvar
Sachove umeni (Ceskoslovensky sach), 1955
#2
5 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sa7#
- 1...Sa6
- 2.Sa7#
- 1...Se6
- 2.Sa7#
- 1...Sa8
- 2.Sa7#
- 1...Sxe8
- 2.Sa7#
- 1...Sb5
- Tries
- 1.Ke4?
- 1...Sxe8
- 2.Sa7#
- 2.Qd5#
- 2.Qxe8#
- 1...Sb5
- 2.Se7#
- 2.Qd5#
- 1...Sd5
- 2.Sa7#
- 2.Qxd5#
- 1...Sa6
- 2.Sa7#
- 2.Qd5#
- 1...Se6
- 2.Sa7#
- 2.Qd5#
- 1...Sa8
- 2.Sa7#
- 2.Qd5#
- 1...Kb5!
- 1...Sxe8
- 1.Kg4?
- 1...Sxe8
- 2.Sa7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sa7#
- 1...Sa6
- 2.Sa7#
- 1...Se6
- 2.Sa7#
- 1...Sa8
- 2.Sa7#
- 1...Kb5!
- 1...Sxe8
- 1.Ke5?
- 1...Sxe8
- 2.Sa7#
- 2.Qd5#
- 2.Qxe8#
- 1...Sb5
- 2.Se7#
- 2.Qd5#
- 1...Sd5
- 2.Sa7#
- 2.Qxd5#
- 1...Sa6
- 2.Sa7#
- 2.Qd5#
- 1...Se6
- 2.Sa7#
- 2.Qd5#
- 1...Sa8
- 2.Sa7#
- 2.Qd5#
- 1...Kb5!
- 1...Sxe8
- 1.Kg6?
- 1...Sxe8
- 2.Sa7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sa7#
- 1...Sa6
- 2.Sa7#
- 1...Se6
- 2.Sa7#
- 1...Sa8
- 2.Sa7#
- 1...Kb5!
- 1...Sxe8
- 1.Sg7?
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sa7#
- 2.Qe8#
- 1...Sa6
- 2.Sa7#
- 1...Se6
- 2.Sa7#
- 1...Sa8
- 2.Sa7#
- 1...Se8
- 2.Sa7#
- 1...Kb5!
- 1...Sb5
- 1.Qxc7+?
- 1...Kd5
- 2.Se7#
- 2.Sf6#
- 2.Qc5#
- 1...Kb5!
- 1...Kd5
- 1.Qd4?
- threat
- 2.Sa7#
- 1...Sd5
- 2.Qa4#
- 1...Sb5
- 2.Se7#
- 1...Kb5!
- threat
- 1.Ke4?
- Keys
- 1.Sed6!
- 1...Kd5
- 2.Se7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sa7#
- 2.Qe8#
- 1...Sa6
- 2.Se7#
- 1...Se6
- 2.Se7#
- 1...Sa8
- 2.Se7#
- 1...Se8
- 2.Se7#
- 1...Kd5
- 1.Sed6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- S(c);SBLOCK::S(C)
- S(c);::S(C)
- S(c);XS(E)::S(C)
- Tries
- Try
- K(A);S_FLIGHT
- Refutation
- K(a);S_FLIGHT
- Try
- K(A);S_FLIGHT
- Vars
- S(c);XS(E)::S(C)
- S(c);SBLOCK::S(C)
- S(c);::S(C)
- Refutation
- K(a);S_FLIGHT
- Try
- K(A);P-FLIGHT
- Refutation
- K(a);S_FLIGHT
- Try
- K(A);S_FLIGHT
- Vars
- S(c);XS(E)::S(C)
- S(c);SBLOCK::S(C)
- S(c);::S(C)
- Refutation
- K(a);S_FLIGHT
- Try
- S(E);
- Vars
- S(c);SBLOCK::S(C)
- S(c);::S(C)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(D);CHECK,XS(c)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(D);
- Threat
- S(C)
- Vars
- S(c);N_GUARD,SBLOCK::QAB(D)
- S(c);SBLOCK::S(C)
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- S(E);
- Vars
- K(a);S_FLIGHT::S(C)
- S(c);::S(C)
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