MESON Chess Problem Database
Problem Display
PID: 90168 (8/4n3/8/kPP1N2K/P3Q3/1P6/2n5/8 w - - 0 1)
Veselenchuk, Semen Ivanovich
Die Schwalbe, 1997
#2
7 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Qe1#
- 1...Se1
- 2.Qxe1#
- 1...Sa3
- 2.Qe1#
- 1...Sb4
- 2.Sc4#
- 1...Sd4
- 2.Qe1#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Sa1
- Tries
- 1.Kg4?
- 1...Sd4
- 2.Qe1#
- 1...Sa1
- 2.Qe1#
- 1...Se1
- 2.Qxe1#
- 1...Sa3
- 2.Qe1#
- 1...Sb4
- 2.Sc4#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Se3+!
- 1...Sd4
- 1.Kg5?
- 1...Sd4
- 2.Qe1#
- 1...Sa1
- 2.Qe1#
- 1...Se1
- 2.Qxe1#
- 1...Sa3
- 2.Qe1#
- 1...Sb4
- 2.Sc4#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Se3!
- 1...Sd4
- 1.Qh1?
- 1...Se3
- 2.Qe1#
- 1...Sa1
- 2.Qe1#
- 1...Se1
- 2.Qxe1#
- 1...Sa3
- 2.Qe1#
- 1...Sb4
- 2.Sc4#
- 1...Sd4
- 2.Qe1#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Kb4!
- 1...Se3
- 1.Qxc2?
- threat
- 2.Qd2#
- 2.Qc3#
- 1...Sd5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Kb4!
- threat
- 1.Qg2?
- 1...Se3
- 2.Qd2#
- 1...Sa1
- 2.Qd2#
- 1...Se1
- 2.Qd2#
- 1...Sa3
- 2.Qd2#
- 1...Sb4
- 2.Sc4#
- 1...Sd4
- 2.Qd2#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Kb4!
- 1...Se3
- 1.Qd3?
- 1...Se3
- 2.Qd2#
- 2.Qc3#
- 1...Sa1
- 2.Qd2#
- 2.Qc3#
- 1...Se1
- 2.Qd2#
- 2.Qc3#
- 1...Sa3
- 2.Qd2#
- 2.Qc3#
- 1...Sb4
- 2.Sc4#
- 2.Qd8#
- 1...Sd4
- 2.Qd2#
- 2.Qc3#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Kb4!
- 1...Se3
- 1.Qe1+?
- 1...Sb4
- 2.Sc4#
- 1...Sxe1!
- 1...Sb4
- 1.Qe2?
- 1...Se3
- 2.Qe1#
- 2.Qd2#
- 1...Sa1
- 2.Qe1#
- 2.Qd2#
- 1...Se1
- 2.Qxe1#
- 2.Qd2#
- 1...Sa3
- 2.Qe1#
- 2.Qd2#
- 1...Sb4
- 2.Sc4#
- 1...Sd4
- 2.Qe1#
- 2.Qd2#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Kb4!
- 1...Se3
- 1.Qb4+?
- 1...Sxb4
- 2.Sc4#
- 1...Kxb4!
- 1...Sxb4
- 1.Qc4?
- 1...Se3
- 2.Qc3#
- 1...Sa1
- 2.Qc3#
- 1...Se1
- 2.Qc3#
- 1...Sa3
- 2.Qc3#
- 1...Sd4
- 2.Qc3#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Sb4!
- 1...Se3
- 1.Qd4?
- 1...Se3
- 2.Qc3#
- 2.Qd2#
- 1...Sa1
- 2.Qc3#
- 2.Qd2#
- 1...Se1
- 2.Qc3#
- 2.Qd2#
- 1...Sa3
- 2.Qc3#
- 2.Qd2#
- 1...Sb4
- 2.Sc4#
- 2.Qd8#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Sxd4!
- 1...Se3
- 1.Qf4?
- 1...Sd4
- 2.Qd2#
- 1...Sa1
- 2.Qd2#
- 1...Se1
- 2.Qd2#
- 1...Sa3
- 2.Qd2#
- 1...Sb4
- 2.Sc4#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Se3!
- 1...Sd4
- 1.Kg4?
- Keys
- 1.Qh4!
- 1...Sd4
- 2.Qe1#
- 1...Se3
- 2.Qe1#
- 1...Sa1
- 2.Qe1#
- 1...Se1
- 2.Qxe1#
- 1...Sa3
- 2.Qe1#
- 1...Sb4
- 2.Sc4#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Sd4
- 1.Qh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB(C)
- S(a);N_GUARD::QAB(C),XS(a)
- S(a);SBLOCK::S(F)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- S(a);N_GUARD::QAB(C)
- S(a);N_GUARD::QAB(C),XS(a)
- S(a);SBLOCK::S(F)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Refutation
- S(a);CHECK
- Try
- K(G);P-FLIGHT
- Vars
- S(a);N_GUARD::QAB(C)
- S(a);N_GUARD::QAB(C),XS(a)
- S(a);SBLOCK::S(F)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Refutation
- S(a);
- Try
- Q(C);
- Vars
- S(a);N_GUARD::QAB(C)
- S(a);N_GUARD::QAB(C),XS(a)
- S(a);SBLOCK::S(F)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(C);XS(a)
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(C);
- Vars
- S(a);N_GUARD::QAB(C)
- S(a);SBLOCK::S(F)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(C);
- Vars
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(C);CHECK
- Vars
- S(a);P_SPINS(a)::S(F)
- Refutation
- S(a);XQ(C)
- Try
- Q(C);
- Vars
- S(a);SBLOCK::S(F)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(C);CHECK
- Vars
- S(a);SBLOCK,XQ(C)::S(F)
- Refutation
- K(b);S_FLIGHT,XQ(C)
- Try
- Q(C);
- Vars
- S(a);N_GUARD::QAB(C)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Refutation
- S(a);
- Try
- Q(C);
- Vars
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Refutation
- S(a);XQ(C)
- Try
- Q(C);
- Vars
- S(a);N_GUARD::QAB(C)
- S(a);SBLOCK::S(F)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- Refutation
- S(a);
- Try
- Actual
- Q(C);
- Vars
- S(a);N_GUARD::QAB(C)
- S(a);N_GUARD::QAB(C),XS(a)
- S(a);SBLOCK::S(F)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
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