MESON Chess Problem Database
Problem Display
PID: 225520 (4K3/3P1P2/2nPkBn1/4p3/2P3P1/8/4N3/3RQR2 w - - 0 1)
Hronec, Jaroslav
Praca, 1958
#2
11 + 4
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sb4
- 2.d8S#
- 1...Sa5
- 2.d8S#
- 1...Sa7
- 2.d8S#
- 1...Sce7
- 2.d8S#
- 1...Sb8
- 2.d8S#
- 1...Sh4
- 2.f8S#
- 1...Sge7
- 2.f8S#
- 1...Sh8
- 2.f8S#
- 1...Sb4
- Tries
- 1.Bh4?
- threat
- 2.Rf6#
- 1...Sxh4
- 2.f8S#
- 1...Sf4
- 2.Sxf4#
- 2.f8S#
- 1...e4!
- threat
- 1.Bg5?
- threat
- 2.Rf6#
- 1...Sf4
- 2.Sxf4#
- 2.f8S#
- 1...e4!
- threat
- 1.Be7?
- threat
- 2.Rf6#
- 1...Scxe7
- 2.d8S#
- 1...Sgxe7
- 2.f8S#
- 1...Sf4
- 2.Sxf4#
- 2.f8S#
- 1...e4!
- threat
- 1.Bg7?
- threat
- 2.Rf6#
- 1...Sf4
- 2.Sxf4#
- 2.f8S#
- 1...e4!
- threat
- 1.Bh8?
- threat
- 2.Rf6#
- 1...Sxh8
- 2.f8S#
- 1...Sf4
- 2.Sxf4#
- 2.f8S#
- 1...e4!
- threat
- 1.Qa5?
- threat
- 2.Qd5#
- 1...Sxa5
- 2.d8S#
- 1...Sb4
- 2.d8S#
- 1...Sce7
- 2.d8S#
- 1...Sge7
- 2.f8S#
- 1...Sf4!
- threat
- 1.d8Q?
- threat
- 2.Qd7#
- 2.Qc8#
- 1...Sd4
- 2.Sxd4#
- 2.Qd7#
- 1...Sa7
- 2.Sd4#
- 2.Qd7#
- 1...Sce7
- 2.Sd4#
- 2.Qd7#
- 1...Sb8
- 2.Sd4#
- 1...Sf4
- 2.Sxf4#
- 2.f8S#
- 1...Sge7
- 2.Qd7#
- 2.f8S#
- 1...Sf8
- 2.Sf4#
- 1...Sxd8!
- threat
- 1.f8Q?
- threat
- 2.Qf7#
- 2.Qg8#
- 1...Sd4
- 2.Sxd4#
- 2.d8S#
- 1...Sce7
- 2.Qf7#
- 2.d8S#
- 1...Sd8
- 2.Sd4#
- 1...Sf4
- 2.Sxf4#
- 2.Qf7#
- 1...Sge7
- 2.Sf4#
- 2.Qf7#
- 1...Sh8
- 2.Sf4#
- 1...Sxf8!
- threat
- 1.Bh4?
- Keys
- 1.Bxe5!
- 1...Kxe5
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 1...Scxe5
- 2.d8S#
- 1...Sgxe5
- 2.f8S#
- 1...Sb4
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sce7
- 2.Sd4#
- 1...Sb8
- 2.Sd4#
- 1...Sd8
- 2.Sd4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...Sge7
- 2.Sf4#
- 1...Sf8
- 2.Sf4#
- 1...Sh8
- 2.Sf4#
- 1...Kxe5
- 1.Bxe5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::P=S
- S(d);N_GUARD::P=S
- Tries
- Try
- B(H);
- Threat
- R1(C)
- Vars
- S(d);N_GUARD,XB(H)::P=S
- Refutation
- P(a);
- Try
- B(H);
- Threat
- R1(C)
- Refutation
- P(a);
- Try
- B(H);
- Threat
- R1(C)
- Vars
- S(b);N_GUARD,XB(H)::P=S
- S(d);N_GUARD,XB(H)::P=S
- Refutation
- P(a);
- Try
- B(H);
- Threat
- R1(C)
- Refutation
- P(a);
- Try
- B(H);
- Threat
- R1(C)
- Vars
- S(d);N_GUARD,XB(H)::P=S
- Refutation
- P(a);
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- S(b);N_GUARD,XQ(B)::P=S
- S(b);N_GUARD::P=S
- S(d);N_GUARD::P=S
- Refutation
- S(d);
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::S(D)
- S(d);N_GUARD::S(D)
- Refutation
- S(b);XQ(I)
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::S(D)
- S(d);N_GUARD::S(D)
- Refutation
- S(d);XQ(J)
- Try
- Actual
- B(H);XP(a)
- Vars
- S(b);N_GUARD,SBLOCK,XB(H)::P=S
- S(d);N_GUARD,SBLOCK,XB(H)::P=S
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- S(d);N_GUARD::S(D),XS(d)
- S(d);N_GUARD::S(D)
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