MESON Chess Problem Database
Problem Display
PID: 177939 (7Q/1p3p2/3pp2K/1PPk2p1/5bN1/B2P1n2/b1Np2n1/8 w - - 0 1)
Sotnik, Wolodimir
5th HM., Sahs (Latvia), 1988
#2
8 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Qd4#
- 1...Sg1
- 2.Qd4#
- 1...Sh2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sh4
- 2.Qd4#
- 1...Se5
- 2.Sf6#
- 1...b6
- 2.Qa8#
- 1...Se1
- Tries
- 1.Qa1?
- threat
- 2.Sf6#
- 2.Qxa2#
- 1...e5
- 2.Qxa2#
- 1...Bb1
- 2.Sf6#
- 1...Bb3
- 2.Sf6#
- 1...Bc4
- 2.Sf6#
- 1...Be5
- 2.Qxa2#
- 1...Se3
- 2.Sf6#
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Sf6#
- 2.Qd4#
- 1...f6
- 2.Sxf6#
- 2.Qxa2#
- 1...dxc5!
- threat
- 1.Qb2?
- threat
- 2.Sf6#
- 2.Qxa2#
- 1...e5
- 2.Qxa2#
- 1...Bb1
- 2.Sf6#
- 2.Qb3#
- 1...Bb3
- 2.Sf6#
- 2.Qxb3#
- 1...Bc4
- 2.Sf6#
- 1...Be5
- 2.Qxa2#
- 1...Se3
- 2.Sf6#
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Sf6#
- 2.Qd4#
- 1...f6
- 2.Sxf6#
- 2.Qxa2#
- 1...dxc5!
- threat
- 1.Qc3?
- threat
- 2.Sb4#
- 2.Sf6#
- 1...dxc5
- 2.Qxc5#
- 1...Bc4
- 2.Sf6#
- 2.Qxc4#
- 1...Be5
- 2.Sb4#
- 1...Sd4
- 2.Sb4#
- 2.Qxd4#
- 1...f6
- 2.Sb4#
- 2.Sxf6#
- 1...e5!
- threat
- 1.Qe5+?
- 1...Sxe5
- 2.Sf6#
- 1...dxe5
- 2.Sf6#
- 1...Bxe5!
- 1...Sxe5
- 1.Qh7?
- threat
- 2.Qe4#
- 1...e5
- 2.Qxf7#
- 1...f5
- 2.Qxb7#
- 1...dxc5!
- threat
- 1.Qb8?
- threat
- 2.Qxb7#
- 1...dxc5
- 2.Sf6#
- 1...e5
- 2.Qxd6#
- 1...Se5
- 2.Sf6#
- 2.Qxd6#
- 1...b6
- 2.Qb7#
- 2.Qa8#
- 1...Sd4!
- threat
- 1.Qa1?
- Keys
- 1.Qc8!
- threat
- 2.Qxb7#
- 1...dxc5
- 2.Qxc5#
- 1...Sd4
- 2.Sb4#
- 1...Se5
- 2.Sf6#
- 1...e5
- 2.Sf6#
- 1...b6
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- threat
- 1.Qc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- S(d);N_GUARD::QAR1(H)
- S(d);N_GUARD::QAR1(H),XS(d)
- S(d);SBLOCK::S(D)
- P(j);OGATEB::QAB(H)
- Tries
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- P(i);::QAB(H),XB(a)
- B(a);::S(D)
- B(e);::QAB(H),XB(a)
- S(c);::S(D)
- S(d);N_GUARD::QAR1(H),XS(d)
- Refutation
- P(h);XP(F)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- P(i);::QAB(H),XB(a)
- B(a);::S(D)
- B(e);::QAB(H),XB(a)
- S(c);::S(D)
- S(d);N_GUARD::QAR1(H),XS(d)
- Refutation
- P(h);XP(F)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- P(h);OGATE,XP(F)::QAR1(H),XP(h)
- B(e);::S(A)
- Refutation
- P(i);
- Try
- Q(H);CHECK
- Vars
- S(d);SBLOCK,XQ(H)::S(D)
- P(h);SBLOCK,XQ(H)::S(D)
- Refutation
- B(e);XQ(H)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- P(i);OGATEB::QAB(H),XP(k)
- P(k);OGATE::QAB(H),XP(j)
- Refutation
- P(h);XP(F)
- Try
- Q(H);
- Threat
- QAB(H),XP(j)
- Vars
- P(h);XP(F)::S(D)
- P(i);S_CUTB(e)::QAR1(H),XP(h)
- Refutation
- S(d);
- Try
- Actual
- Q(H);
- Threat
- QAB(H),XP(j)
- Vars
- P(h);OGATE,XP(F)::QAR1(H),XP(h)
- S(d);SBLOCK::S(A)
- S(d);SBLOCK::S(D)
- P(i);SBLOCK::S(D)
Developed and maintained by Brian Stephenson.
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