MESON Chess Problem Database
Problem Display
PID: 227579 (Q5n1/3p4/2q5/NP1k1P2/4N2R/1b2KBB1/1P6/8 w - - 0 1)
Buchwald, Julius
Tijdschrift vd NSB, 1926
#2
10 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qb7
- 2.Qxb7#
- 2.Qxg8#
- 1...d6
- 2.Qxc6#
- 2.Qxg8#
- 1...Qb7
- Tries
- 1.Sxb3?
- threat
- 2.Sed2#
- 2.Sf2#
- 2.Sc3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Sf6
- 2.Sc3#
- 2.Sxf6#
- 1...d6
- 2.Sed2#
- 2.Sf2#
- 2.Sc3#
- 2.Sec5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Qxc6#
- 2.Qxg8#
- 1...Kc4!
- threat
- 1.Qa7?
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 2.Qd4#
- 1...Qc1+
- 2.Sd2#
- 1...Qc3+
- 2.Sxc3#
- 1...Qc5+
- 2.Sxc5#
- 2.Qxc5#
- 1...Qh6+
- 2.Sg5#
- 1...Qc2
- 2.Sc3#
- 2.Sf6#
- 2.Qd4#
- 2.Qxd7#
- 1...Qc4
- 2.Sc3#
- 2.Sf6#
- 2.Qxd7#
- 1...Qd6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Qd4#
- 1...Qe6
- 2.Qd4#
- 2.Qc5#
- 1...Qf6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sxf6#
- 2.Qc5#
- 1...Bd1
- 2.Sc3#
- 2.Sf6#
- 2.Qd4#
- 1...Bc2
- 2.Sc3#
- 2.Sf6#
- 2.Qd4#
- 1...Sf6
- 2.Sc3#
- 2.Sxf6#
- 2.Qd4#
- 1...d6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Qd4#
- 2.Qf7#
- 1...Qb6+!
- threat
- 1.Qf8?
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Qc1+
- 2.Sd2#
- 1...Qc3+
- 2.Sxc3#
- 1...Qc5+
- 2.Sxc5#
- 2.Qxc5#
- 1...Qb6+
- 2.Sc5#
- 1...Qh6+
- 2.Sg5#
- 1...Qc2
- 2.Sc3#
- 2.Sf6#
- 2.Qd6#
- 2.Qf7#
- 2.Qxg8#
- 1...Qc4
- 2.Sc3#
- 2.Sf6#
- 2.Qd6#
- 2.Qf7#
- 2.Qxg8#
- 1...Qd6
- 2.Qxd6#
- 1...Qe6
- 2.Qc5#
- 1...Qf6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxf6#
- 2.Qc5#
- 1...Bd1
- 2.Sc3#
- 2.Sf6#
- 1...Bc2
- 2.Sc3#
- 2.Sf6#
- 1...Sf6
- 2.Sc3#
- 2.Sxf6#
- 1...d6
- 2.Qf7#
- 2.Qxg8#
- 1...Se7!
- threat
- 1.bxc6?
- threat
- 2.Qxg8#
- 2.cxd7#
- 2.c7#
- 1...dxc6
- 2.Qxc6#
- 2.Qd8#
- 2.Qxg8#
- 1...Ba4
- 2.Qxg8#
- 1...Sf6
- 2.cxd7#
- 2.c7#
- 1...Sh6
- 2.cxd7#
- 2.c7#
- 1...d6
- 2.Qxg8#
- 2.c7#
- 1...Se7!
- threat
- 1.Sxb3?
- Keys
- 1.Sb7!
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sec5#
- 2.Sg5#
- 2.Sed6#
- 2.Sf6#
- 1...Qc1+
- 2.Sd2#
- 1...Qc3+
- 2.Sxc3#
- 1...Qc5+
- 2.Sexc5#
- 1...Qb6+
- 2.Sec5#
- 1...Qh6+
- 2.Sg5#
- 1...Kc4
- 2.Sed6#
- 1...Qxb7
- 2.Qxg8#
- 1...Qc2
- 2.Sc3#
- 2.Sf6#
- 2.Qxg8#
- 1...Qc4
- 2.Sc3#
- 2.Sf6#
- 2.Sbc5#
- 2.Qxg8#
- 1...Qd6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sec5#
- 2.Sg5#
- 2.Sexd6#
- 2.Sf6#
- 2.Sbxd6#
- 1...Qe6
- 2.Sd6#
- 1...Qf6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sec5#
- 2.Sg5#
- 2.Sed6#
- 2.Sxf6#
- 2.Sbd6#
- 1...Bd1
- 2.Sc3#
- 2.Sf6#
- 1...Bc2
- 2.Sc3#
- 2.Sf6#
- 1...Sf6
- 2.Sc3#
- 2.Sxf6#
- 1...d6
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sec5#
- 2.Sg5#
- 2.Sexd6#
- 2.Sf6#
- 2.Qxg8#
- threat
- 1.Sb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(G);XB(a)
- Threat
- DUALS(7)
- Refutation
- K(b);N_SPINQ(c),S_FLIGHT
- Try
- Q(J);N_PINQ(c)
- Threat
- DUALS(8)
- Vars
- Q(c);CHECK::B(C)+S(E)
- Q(c);CHECK::B(C)+S(E),DCHECK,XQ(c)
- Refutation
- Q(c);CHECK
- Try
- Q(J);N_PINQ(c)
- Threat
- DUALS(6)
- Vars
- Q(c);CHECK::B(C)+S(E)
- Q(c);CHECK::B(C)+S(E),DCHECK,XQ(c)
- Q(c);N_GUARD::QAR1(J),XQ(c)
- Q(c);N_GUARD,P_PINS(E)::QAR1(J)
- Refutation
- S(e);
- Try
- P(H);XQ(c)
- Threat
- DUALS(3)
- Vars
- B(a);::QAB(J),XS(e)
- Refutation
- S(e);
- Try
- Actual
- S(G);N_PINQ(c)
- Threat
- DUALS(7)
- Vars
- Q(c);CHECK::B(C)+S(E)
- Q(c);CHECK::B(C)+S(E),DCHECK,XQ(c)
- Q(c);CHECK::B(C)+S(E),XQ(c)
- K(b);S_FLIGHT::R(F)+S(E),DCHECK
- Q(c);N_GUARD,P_SPINQ(c),XS(G)::QAB(J),XS(e)
- Q(c);P_PINS(E)::QAB(J)+S(G)
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).