MESON Chess Problem Database
Problem Display
PID: 233298 (8/Q1K5/8/1p1p4/PBk1p3/2Pnp2B/2P1n3/N7 w - - 0 1)
Paslack, Rainer
Freie Presse, 2009
#2
8 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sec1
- 2.Qd4#
- 1...Sg1
- 2.Qd4#
- 1...Sg3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sef4
- 2.Qd4#
- 1...Sdc1
- 2.Qc5#
- 1...Se1
- 2.Qc5#
- 1...Sb2
- 2.Qc5#
- 1...Sf2
- 2.Qc5#
- 1...Sdf4
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Se5
- 2.Qc5#
- 1...bxa4
- 2.Qa6#
- 1...d4
- 2.Be6#
- 1...Sec1
- Tries
- 1.Kd6?
- 1...Sxb4
- 2.Qc5#
- 1...bxa4
- 2.Qa6#
- 1...Sec1
- 2.Qd4#
- 1...Sg1
- 2.Qd4#
- 1...Sg3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sef4
- 2.Qd4#
- 1...Sdc1
- 2.Qc5#
- 2.Qc7#
- 1...Se1
- 2.Qc5#
- 2.Qc7#
- 1...Sb2
- 2.Qc5#
- 2.Qc7#
- 1...Sf2
- 2.Qc5#
- 2.Qc7#
- 1...Sdf4
- 2.Qc5#
- 2.Qc7#
- 1...Sc5
- 2.Qxc5#
- 1...Se5
- 2.Qc5#
- 1...d4
- 2.Be6#
- 2.Qf7#
- 1...Sxc3!
- 1...Sxb4
- 1.Bf1?
- 1...Sxc3
- 2.Qc5#
- 1...Sxb4
- 2.Qd4#
- 1...bxa4
- 2.Qa6#
- 1...Sec1
- 2.Qd4#
- 2.Qc5#
- 1...Sg1
- 2.Qd4#
- 2.Qc5#
- 1...Sg3
- 2.Qd4#
- 2.Qc5#
- 1...Sd4
- 2.Qxd4#
- 2.Qc5#
- 1...Sef4
- 2.Qd4#
- 2.Qc5#
- 1...Sdc1
- 2.Qd4#
- 2.Qc5#
- 1...Se1
- 2.Qd4#
- 2.Qc5#
- 1...Sb2
- 2.Qd4#
- 2.Qc5#
- 1...Sf2
- 2.Qd4#
- 2.Qc5#
- 1...Sdf4
- 2.Qd4#
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Se5
- 2.Qd4#
- 2.Qc5#
- 1...d4!
- 1...Sxc3
- 1.cxd3+?
- 1...exd3
- 2.Qc5#
- 1...Kxd3!
- 1...exd3
- 1.Kd6?
- Keys
- 1.Sb3!
- threat
- 2.Sa5#
- 1...Sxc3
- 2.Qd4#
- 1...Sxb4
- 2.Qc5#
- 1...bxa4
- 2.Qa6#
- 1...d4
- 2.Be6#
- threat
- 1.Sb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- S(a);N_GUARD::QAR1(G)
- S(a);N_GUARD::QAR1(G),XS(a)
- S(b);N_GUARD::QAR1(G)
- S(b);N_GUARD::QAR1(G),XS(b)
- P(f);OGATEB,XP(E)::QAB(G)
- P(g);OGATEB::B(D)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- S(b);N_GUARD,XB(F)::QAR1(G)
- P(f);OGATEB,XP(E)::QAB(G)
- S(a);N_GUARD::QAR1(G)
- S(a);N_GUARD::QAR1(G),XS(a)
- S(b);N_GUARD::QAR1(G),XS(b)
- S(b);N_GUARD::QAR1(G)
- Refutation
- S(a);XP(C)
- Try
- B(D);
- Vars
- S(a);P_SPINS(b),XP(C)::QAR1(G)
- S(b);P_SPINS(a),XB(F)::QAR1(G)
- P(f);OGATEB,XP(E)::QAB(G)
- S(b);N_GUARD,P_SPINS(a)::QAR1(G),XS(b)
- Refutation
- P(g);
- Try
- P(B);CHECK,XS(b)
- Vars
- P(e);SBLOCK,XP(B)::QAR1(G)
- Refutation
- K(d);S_FLIGHT,XP(B)
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- S(a);N_GUARD,XP(C)::QAR1(G)
- S(b);N_GUARD,XB(F)::QAR1(G)
- P(f);OGATEB,XP(E)::QAB(G)
- P(g);OGATEB::B(D)
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).