MESON Chess Problem Database
Problem Display
PID: 178780 (8/3B2B1/3p4/3k4/2nPn3/8/7Q/3N2K1 w - - 0 1)
Ekstrom, Sven Johan Adrian
Springaren, 1953
#2
6 + 4
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Se3#
- 1...Scd2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Sed2
- 2.Sc3#
- 1...Sf2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sg3
- 2.Sc3#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 1...Sb2
- Tries
- 1.Qf4?
- threat
- 2.Qf7#
- 1...Sed2
- 2.Sc3#
- 1...Sf2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sg3
- 2.Sc3#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 1...Sf6
- 2.Sc3#
- 1...Se5!
- threat
- 1.Qxd6+?
- 1...Scxd6
- 2.Se3#
- 1...Sexd6
- 2.Sc3#
- 1...Kxd6!
- 1...Scxd6
- 1.Qh1?
- threat
- 2.Sc3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Se5!
- threat
- 1.Qa2?
- threat
- 2.Se3#
- 2.Qa8#
- 1...Sd2
- 2.Sc3#
- 2.Qa8#
- 1...Sf2
- 2.Sc3#
- 2.Qa8#
- 1...Sc3
- 2.Sxc3#
- 2.Qa8#
- 1...Sg3
- 2.Sc3#
- 2.Qa8#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 2.Qa8#
- 1...Sf6!
- threat
- 1.Qb2?
- threat
- 2.Qb7#
- 1...Sxb2
- 2.Se3#
- 1...Scd2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Sc5
- 2.Sc3#
- 1...Sf6!
- threat
- 1.Qf2?
- threat
- 2.Qf7#
- 1...Sxf2
- 2.Sc3#
- 1...Sed2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sg3
- 2.Sc3#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 1...Sf6
- 2.Sc3#
- 1...Se5!
- threat
- 1.Qg2?
- threat
- 2.Sc3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Se5!
- threat
- 1.Qh4?
- 1...Sb2
- 2.Se3#
- 1...Scd2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Sed2
- 2.Sc3#
- 1...Sf2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sg3
- 2.Sc3#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 1...Sf6
- 2.Sc3#
- 1...Se5!
- 1...Sb2
- 1.Qh5+?
- 1...Sg5
- 2.Sc3#
- 1...Se5!
- 1...Sg5
- 1.Qf4?
- Keys
- 1.Qd2!
- 1...Scxd2
- 2.Se3#
- 1...Sexd2
- 2.Sc3#
- 1...Sb2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Sf2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sg3
- 2.Sc3#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 1...Sf6
- 2.Sc3#
- 1...Scxd2
- 1.Qd2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- Tries
- Try
- Q(C);
- Threat
- QAB(C)
- Vars
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- Refutation
- S(a);
- Try
- Q(C);CHECK,XP(d)
- Vars
- S(a);SBLOCK,XQ(C)::S(A)
- S(b);SBLOCK,XQ(C)::S(A)
- Refutation
- K(c);P-FLIGHT,XQ(C)
- Try
- Q(C);P_PINS(b)
- Threat
- S(A)
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- S(a);
- Try
- Q(C);P_PINS(a)
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::S(A)
- Refutation
- S(b);
- Try
- Q(C);
- Threat
- QAB(C)
- Vars
- S(a);N_GUARD,XQ(C)::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::S(A)
- Refutation
- S(b);
- Try
- Q(C);
- Threat
- QAB(C)
- Vars
- S(b);N_GUARD,XQ(C)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- Refutation
- S(a);
- Try
- Q(C);P_PINS(b)
- Threat
- S(A)
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- S(a);
- Try
- Q(C);
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- Refutation
- S(a);
- Try
- Q(C);CHECK
- Vars
- S(b);P_SPINS(b)::S(A)
- Refutation
- S(a);P_SPINS(a)
- Try
- Actual
- Q(C);
- Vars
- S(a);N_GUARD,XQ(C)::S(A)
- S(b);N_GUARD,XQ(C)::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
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