MESON Chess Problem Database
Problem Display
PID: 90024 (2B2n2/8/1pNpP3/1KNk4/4p3/pp3r2/7Q/2b1R3 w - - 0 1)
Popovski, Aleksandr
Die Schwalbe, 1997
#2
7 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Qh5#
- 1...Sxe6
- 2.Bxe6#
- 1...dxc5
- 2.Qe5#
- 1...Re3
- Tries
- 1.Sa4?
- threat
- 2.Sxb6#
- 1...e3
- 2.Sc3#
- 1...Be3
- 2.Sc3#
- 1...Sd7!
- threat
- 1.Sa6?
- threat
- 2.Sab4#
- 2.Sc7#
- 1...Sxe6
- 2.Sab4#
- 1...Sd7
- 2.Sc7#
- 1...Rf7
- 2.Sab4#
- 1...Bd2
- 2.Sc7#
- 1...e3!
- threat
- 1.Rxe4?
- threat
- 2.Sb4#
- 2.Se7#
- 2.Rd4#
- 1...Sxe6
- 2.Sb4#
- 2.Se7#
- 2.Bxe6#
- 1...dxc5
- 2.Qe5#
- 1...Rd3
- 2.Sb4#
- 2.Se7#
- 1...Rf4
- 2.Sb4#
- 2.Se7#
- 1...Rf7
- 2.Sb4#
- 2.Rd4#
- 1...Bb2
- 2.Sb4#
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 2.Rd4#
- 1...Be3
- 2.Sb4#
- 2.Se7#
- 1...Bg5
- 2.Sb4#
- 2.Rd4#
- 1...Sg6
- 2.Sb4#
- 2.Rd4#
- 1...bxc5!
- threat
- 1.Qe2?
- threat
- 2.Qc4#
- 2.Qxe4#
- 1...Rc3
- 2.Qxe4#
- 1...Rd3
- 2.Qxe4#
- 1...Re3
- 2.Qc4#
- 2.Qh5#
- 1...Rf4
- 2.Qc4#
- 1...Be3
- 2.Qc4#
- 1...e3
- 2.Qd3#
- 2.Qxf3#
- 2.Qc4#
- 1...dxc5!
- threat
- 1.Qh5+?
- 1...Rf5
- 2.Qxf5#
- 1...Bg5!
- 1...Rf5
- 1.Qh8?
- threat
- 2.Sb4#
- 2.Se7#
- 2.Qd4#
- 1...Sxe6
- 2.Sb4#
- 2.Se7#
- 2.Bxe6#
- 1...bxc5
- 2.Se7#
- 1...dxc5
- 2.Qe5#
- 1...Rd3
- 2.Sb4#
- 2.Se7#
- 1...Rf7
- 2.Sb4#
- 2.Qd4#
- 1...Bb2
- 2.Sb4#
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 2.Qd4#
- 1...Be3
- 2.Sb4#
- 2.Se7#
- 1...Bg5
- 2.Sb4#
- 2.Qd4#
- 1...Sg6
- 2.Sb4#
- 2.Qd4#
- 1...Rf6!
- threat
- 1.Sa4?
- Keys
- 1.Sxe4!
- threat
- 2.Qxd6#
- 1...Re3
- 2.Sf6#
- 1...Be3
- 2.Sc3#
- 1...Rg3
- 2.Sf6#
- 1...Rf4
- 2.Sc3#
- 1...Bf4
- 2.Sf6#
- threat
- 1.Sxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- R(d);N_GUARD,S_CUTB(a)::QAR(B)
- S(i);OGATE,XP(F)::B(G),XS(i)
- P(h);N_GUARD,XS(D)::QAR1(B)
- Tries
- Try
- S(D);
- Threat
- S(D),XP(g)
- Vars
- P(e);S_CUTR(d)::S(D)
- B(a);S_CUTR(d)::S(D)
- Refutation
- S(i);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(i);XP(F)::S(D)
- S(i);::S(D)
- R(d);::S(D)
- B(a);::S(D)
- Refutation
- P(e);
- Try
- R(A);XP(e)
- Threat
- DUALS(3)
- Vars
- P(h);N_GUARD,XS(D)::QAR1(B)
- Refutation
- P(g);XS(D)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(d);::QAB1(B),XP(e)
- R(d);::QAB1(B)
- B(a);::QAB1(B)
- Refutation
- P(h);XS(D)
- Try
- Q(B);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(B),XR(d)
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- P(g);XS(D)::S(E)
- P(h);N_GUARD,XS(D)::QAR1(B)
- Refutation
- R(d);
- Try
- Actual
- S(D);XP(e)
- Threat
- QAR1(B),XP(h)
- Vars
- R(d);N_GUARD::S(D)
- B(a);S_CUTR(d)::S(D)
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