MESON Chess Problem Database
Problem Display
PID: 176525 (4B1K1/3P1PB1/4k3/2Q3b1/4pr2/3P1nN1/8/8 w - - 0 1)
Paslack, Rainer
HM., Schach-Echo, 1991
#2
8 + 5
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rg4
- 2.f8S#
- 1...Rh4
- 2.f8S#
- 1...Rf6
- 2.d8S#
- 1...Bf6
- 2.f8S#
- 1...Bh6
- 2.d8S#
- 1...Se1
- 2.Qe5#
- 1...Sg1
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sh2
- 2.Qe5#
- 1...Sd4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Rg4
- Tries
- 1.Bf8?
- threat
- 2.Qd6#
- 1...Kf6
- 2.Qd6#
- 1...Be7!
- threat
- 1.Qb6+?
- 1...Ke7
- 2.Bf8#
- 2.d8Q#
- 2.d8B#
- 1...Kd5!
- 1...Ke7
- 1.Qd5+?
- 1...Ke7
- 2.d8Q#
- 2.d8B#
- 1...Kxd5!
- 1...Ke7
- 1.d4?
- threat
- 2.d5#
- 1...Sxd4
- 2.Qe5#
- 1...Rf6
- 2.d8S#
- 1...Bf6
- 2.f8S#
- 1...Rf5!
- threat
- 1.d8Q?
- threat
- 2.Bd7#
- 2.Qcb6#
- 2.Qcd6#
- 2.Qdb6#
- 2.Qc4#
- 2.Qcd5#
- 2.Qc6#
- 2.Qcc8#
- 2.Qdd5#
- 2.Qdd6#
- 2.Qd7#
- 2.Qdc8#
- 1...Rxf7
- 2.Bxf7#
- 2.Qcb6#
- 2.Qcd6#
- 2.Qdb6#
- 2.Qc4#
- 2.Qcd5#
- 2.Qc6#
- 2.Qdd5#
- 2.Qdd6#
- 1...exd3
- 2.Bd7#
- 2.Qcb6#
- 2.Qcd6#
- 2.Qdb6#
- 2.Qcd5#
- 2.Qc6#
- 2.Qcc8#
- 2.Qdd5#
- 2.Qdd6#
- 2.Qd7#
- 2.Qdc8#
- 1...Be7
- 2.Bd7#
- 2.Qcxe7#
- 2.Qdxe7#
- 2.Qc4#
- 2.Qcd5#
- 2.Qcc8#
- 2.Qdd5#
- 2.Qd7#
- 2.Qdc8#
- 1...Rf5
- 2.Bd7#
- 2.Qcb6#
- 2.Qcd6#
- 2.Qdb6#
- 2.Qxf5#
- 2.Qc6#
- 2.Qcc8#
- 2.Qdd6#
- 2.Qd7#
- 2.Qdc8#
- 1...Rf6
- 2.Bd7#
- 2.Qcd6#
- 2.Qce7#
- 2.Qdb6#
- 2.Qde7#
- 2.Qcd5#
- 2.Qdd5#
- 2.Qdd6#
- 2.Qd7#
- 2.Qdc8#
- 1...Bf6
- 2.Bd7#
- 2.Qcd6#
- 2.Qdb6#
- 2.Qcd5#
- 2.Qdd5#
- 2.Qdd6#
- 2.Qd7#
- 2.Qdc8#
- 2.f8S#
- 1...Sd2
- 2.Bd7#
- 2.Qcb6#
- 2.Qcd6#
- 2.Qdb6#
- 2.Qcd5#
- 2.Qe5#
- 2.Qc6#
- 2.Qcc8#
- 2.Qdd5#
- 2.Qdd6#
- 2.Qd7#
- 2.Qdc8#
- 1...Sd4
- 2.Bd7#
- 2.Qcd6#
- 2.Qc4#
- 2.Qcd5#
- 2.Qe5#
- 2.Qcc8#
- 2.Qdd5#
- 2.Qdd6#
- 2.Qd7#
- 2.Qdc8#
- 1...Se5
- 2.Qcd6#
- 2.Qcd5#
- 2.Qxe5#
- 2.Qdd5#
- 2.Qdd6#
- 1...e3
- 2.Bd7#
- 2.Qcb6#
- 2.Qcd6#
- 2.Qdb6#
- 2.Qcd5#
- 2.Qc6#
- 2.Qcc8#
- 2.Qdd5#
- 2.Qdd6#
- 2.Qd7#
- 2.Qdc8#
- 1...Bxd8!
- threat
- 1.d8R?
- threat
- 2.Bd7#
- 2.Qd6#
- 1...Rxf7
- 2.Bxf7#
- 2.Qd6#
- 1...Be7
- 2.Bd7#
- 2.Qc4#
- 2.Qd5#
- 2.Qc8#
- 1...Se5
- 2.Qd6#
- 2.Qxe5#
- 1...Bxd8!
- threat
- 1.f8Q?
- threat
- 2.Qcd6#
- 2.Qfd6#
- 2.Qc4#
- 2.Qc6#
- 1...exd3
- 2.Qcd6#
- 2.Qfd6#
- 2.Qc6#
- 1...Be7
- 2.Qfxe7#
- 1...Rf5
- 2.Qcd6#
- 2.Qfd6#
- 2.Qcxf5#
- 2.Qc6#
- 2.Qfxf5#
- 1...Rf6
- 2.Qcd6#
- 2.Qfd6#
- 2.Qfe7#
- 2.d8S#
- 1...Bf6
- 2.Qcd6#
- 2.Qfd6#
- 2.Qf7#
- 1...Sd2
- 2.Qcd6#
- 2.Qfd6#
- 2.Qe5#
- 2.Qc6#
- 1...Sd4
- 2.Qcd6#
- 2.Qfd6#
- 2.Qc4#
- 2.Qe5#
- 1...Se5
- 2.Qcd6#
- 2.Qfd6#
- 2.Qxe5#
- 1...e3
- 2.Qcd6#
- 2.Qfd6#
- 2.Qc6#
- 1...Rxf8+!
- threat
- 1.Bf8?
- Keys
- 1.Bf6!
- threat
- 2.Qc6#
- 1...Kxf6
- 2.Qd6#
- 1...Rxf6
- 2.d8S#
- 1...Bxf6
- 2.f8S#
- 1...Sd4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- threat
- 1.Bf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(c);N_GUARD::P=S
- R(c);S_CUTB(d)::P=S
- B(d);S_CUTR(c)::P=S
- B(d);N_GUARD::P=S
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- Tries
- Try
- B(F);
- Threat
- QAR1(C)
- Vars
- K(e);P-FLIGHT::QAR2(C)
- Refutation
- B(d);
- Try
- Q(C);CHECK
- Refutation
- K(e);S_FLIGHT
- Try
- Q(C);CHECK
- Vars
- K(e);P-FLIGHT::P=Q
- Refutation
- K(e);S_FLIGHT,XQ(C)
- Try
- P(A);
- Threat
- P(A)
- Vars
- S(a);N_GUARD,XP(A)::QAR1(C)
- R(c);S_CUTB(d)::P=S
- B(d);S_CUTR(c)::P=S
- Refutation
- R(c);
- Try
- P(D);
- Threat
- DUALS(12)
- Refutation
- B(d);XQ(D)
- Try
- P(D);
- Threat
- DUALS(2)
- Refutation
- B(d);XR(D)
- Try
- P(E);
- Threat
- DUALS(4)
- Vars
- B(d);N_GUARD::QAR1(E),XB(d)
- Refutation
- R(c);CHECK,XQ(E)
- Try
- Actual
- B(F);
- Threat
- QAR2(C)
- Vars
- K(e);P-FLIGHT,XB(F)::QAR2(C)
- R(c);SBLOCK,XB(F)::P=S
- B(d);SBLOCK,XB(F)::P=S
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).