MESON Chess Problem Database
Problem Display
PID: 223662 (1b6/pb6/7Q/8/5N1K/7B/4N2p/7k w - - 0 1)
Chocolous, Jiri
Oesterreichische Lesehalle, 1887
#2
5 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bg2
- 2.Bxg2#
- 1...Ba6
- 2.Bg2#
- 2.Qc6#
- 1...Bc6
- 2.Qxc6#
- 1...Bc8
- 2.Bg2#
- 2.Qc6#
- 1...Bg2
- Tries
- 1.Sd3?
- threat
- 2.Sf2#
- 2.Qc1#
- 1...Bg2
- 2.Sf2#
- 1...Bf4
- 2.Sf2#
- 1...Bg3+!
- threat
- 1.Qg7?
- threat
- 2.Qa1#
- 2.Qxb7#
- 1...Bxf4
- 2.Qxb7#
- 1...Bg2
- 2.Bxg2#
- 2.Qxg2#
- 1...Bf3
- 2.Qa1#
- 1...Bd5
- 2.Qa1#
- 1...Ba6
- 2.Bg2#
- 2.Qa1#
- 2.Qg2#
- 1...Bc6
- 2.Qa1#
- 1...Ba8
- 2.Qa1#
- 1...Bc8
- 2.Bg2#
- 2.Qa1#
- 2.Qg2#
- 1...Be5
- 2.Qxb7#
- 1...Bc7
- 2.Qa1#
- 1...Be4!
- threat
- 1.Qa6?
- threat
- 2.Qxb7#
- 2.Qa1#
- 1...Bxa6
- 2.Bg2#
- 1...Bxf4
- 2.Qxb7#
- 1...Bg2
- 2.Bxg2#
- 1...Bf3
- 2.Qa1#
- 1...Bd5
- 2.Qa1#
- 1...Bc6
- 2.Qa1#
- 2.Qxc6#
- 1...Ba8
- 2.Qa1#
- 1...Bc8
- 2.Bg2#
- 2.Qa1#
- 2.Qc6#
- 1...Be5
- 2.Qxb7#
- 1...Be4!
- threat
- 1.Qb6?
- threat
- 2.Sg3#
- 2.Qb1#
- 2.Qxb7#
- 1...Bxf4
- 2.Qxb7#
- 1...Bg2
- 2.Sg3#
- 2.Bxg2#
- 1...Bf3
- 2.Sg3#
- 2.Qb1#
- 1...Be4
- 2.Sg3#
- 1...Bd5
- 2.Sg3#
- 2.Qb1#
- 1...Ba6
- 2.Sg3#
- 2.Bg2#
- 2.Qb1#
- 2.Qc6#
- 1...Bc6
- 2.Sg3#
- 2.Qb1#
- 2.Qxc6#
- 1...Ba8
- 2.Sg3#
- 2.Qb1#
- 1...Bc8
- 2.Sg3#
- 2.Bg2#
- 2.Qb1#
- 2.Qc6#
- 1...axb6!
- threat
- 1.Qd6?
- threat
- 2.Qd1#
- 1...Bg2
- 2.Bxg2#
- 1...Bd5
- 2.Qxd5#
- 1...Bxd6!
- threat
- 1.Qg6?
- threat
- 2.Qb1#
- 1...Bg2
- 2.Bxg2#
- 2.Qxg2#
- 1...Be4
- 2.Qxe4#
- 1...Bxf4!
- threat
- 1.Sd3?
- Keys
- 1.Qh7!
- threat
- 2.Qb1#
- 2.Qxb7#
- 1...Bxf4
- 2.Qxb7#
- 1...Bg2
- 2.Bxg2#
- 1...Bf3
- 2.Qb1#
- 1...Be4
- 2.Qxe4#
- 1...Bd5
- 2.Qb1#
- 1...Ba6
- 2.Bg2#
- 2.Qb1#
- 2.Qe4#
- 1...Bc6
- 2.Qb1#
- 1...Ba8
- 2.Qb1#
- 1...Bc8
- 2.Bg2#
- 2.Qb1#
- 2.Qe4#
- 1...Bc7
- 2.Qb1#
- threat
- 1.Qh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- B(d);N_GUARD::B(B),XB(d)
- B(d);N_GUARD::QAB(E),XB(d)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- B(d);::S(C)
- B(e);::S(C)
- Refutation
- B(e);CHECK
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(e);XS(C)::QAB(E),XB(d)
- B(d);::QAB1(E)
- B(e);::QAB(E),XB(d)
- B(e);::QAB1(E)
- Refutation
- B(d);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(d);N_GUARD,XQ(E)::B(B)
- B(e);XS(C)::QAB(E),XB(d)
- B(d);N_GUARD::B(B),XB(d)
- B(d);::QAB1(E)
- B(e);::QAB(E),XB(d)
- Refutation
- B(d);
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- B(e);XS(C)::QAB(E),XB(d)
- B(d);::S(A)
- Refutation
- P(c);XQ(E)
- Try
- Q(E);
- Threat
- QAR(E)
- Vars
- B(d);N_GUARD::B(B),XB(d)
- B(d);N_GUARD::QAB(E),XB(d)
- Refutation
- B(e);XQ(E)
- Try
- Q(E);
- Threat
- QAR(E)
- Vars
- B(d);N_GUARD::QAB(E),XB(d)
- Refutation
- B(e);XS(C)
- Try
- Actual
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(e);XS(C)::QAB(E),XB(d)
- B(d);N_GUARD::B(B),XB(d)
- B(d);::QAR(E)
- B(d);N_GUARD::QAB(E),XB(d)
- B(e);::QAR(E)
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