MESON Chess Problem Database
Problem Display
PID: 74156 (4B3/8/8/1q6/1p4P1/pk1NQ3/R1R1K3/8 w - - 0 1)
Buchwald, Julius
2nd Prize, Probleemblad 074. TT, 1948
#2
7 + 4
| 5759 | Selected Compositions of Julius Buchwald | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Qxd3+
- 2.Qxd3#
- 1...Qa4
- 2.Sc1#
- 2.Se1#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Se5#
- 2.Bf7#
- 2.Qe6#
- 1...Qc6
- 2.Sc5#
- 1...Qd7
- 2.Sc5#
- 1...Qxe8
- 2.Sc5#
- 1...Qa5
- 2.Sc1#
- 2.Se1#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Se5#
- 1...Qc5
- 2.Sc1#
- 2.Sxc5#
- 1...Qd5
- 2.Sc1#
- 2.Sc5#
- 1...Qe5
- 2.Sc1#
- 2.Sc5#
- 2.Sxe5#
- 1...Qf5
- 2.Sc1#
- 2.Sc5#
- 1...Qg5
- 2.Sc1#
- 2.Sf4#
- 2.Sc5#
- 1...Qh5
- 2.Sc1#
- 2.Se1#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Se5#
- 1...Qb6
- 2.Sc1#
- 2.Sc5#
- 1...Qb7
- 2.Sc1#
- 2.Se1#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Se5#
- 1...Qb8
- 2.Sc1#
- 2.Se1#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Se5#
- 2.Qe6#
- 1...Qxd3+
- Tries
- 1.Ke1?
- threat
- 2.Sc5#
- 1...Qxd3
- 2.Qxd3#
- 1...Qc5
- 2.Sc1#
- 2.Sxc5#
- 1...Ka4!
- threat
- 1.Rab2+?
- 1...Ka4
- 2.Qa7#
- 1...axb2!
- 1...Ka4
- 1.Qe6+?
- 1...Qc4
- 2.Qxc4#
- 1...Qd5
- 2.Sc1#
- 2.Sc5#
- 2.Qxd5#
- 1...Ka4!
- 1...Qc4
- 1.Ke1?
- Keys
- 1.Qe4!
- 1...Qxd3+
- 2.Qxd3#
- 1...Ka4
- 2.Qxb4#
- 1...Qxe8
- 2.Sc5#
- 1...Qc4
- 2.Qxc4#
- 1...Qa4
- 2.Sc1#
- 2.Sc5#
- 2.Bf7#
- 2.Qd5#
- 2.Qc4#
- 2.Qe6#
- 1...Qa6
- 2.Qxb4#
- 1...Qc6
- 2.Qxb4#
- 1...Qd7
- 2.Sc5#
- 2.Qxb4#
- 1...Qa5
- 2.Sc1#
- 2.Qc4#
- 1...Qc5
- 2.Sc1#
- 2.Sxc5#
- 1...Qd5
- 2.Sc1#
- 2.Qxd5#
- 2.Qxb4#
- 1...Qe5
- 2.Sc1#
- 1...Qf5
- 2.Sc1#
- 2.Qxb4#
- 2.Qc4#
- 1...Qg5
- 2.Qxb4#
- 2.Qc4#
- 1...Qh5
- 2.Sc1#
- 2.Qxb4#
- 2.Qc4#
- 1...Qb6
- 2.Sc1#
- 2.Qd5#
- 2.Qc4#
- 1...Qb7
- 2.Sc1#
- 2.Sc5#
- 2.Qc4#
- 1...Qb8
- 2.Sc1#
- 2.Sc5#
- 2.Qd5#
- 2.Qc4#
- 2.Qe6#
- 1...Qxd3+
- 1.Qe4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- Q(d);CHECK,OGATE,P_SPINQ(d),XS(D)::QAR2(E),XQ(d)
- Q(d);N_PINS(D)::QAR(E)+S(D),DCHECK
- Q(d);N_PINS(D),P_PINQ(E),XB(G)::QAR(E)+S(D),DCHECK
- Tries
- Try
- K(C);N_SPINS(D),P-FLIGHT
- Threat
- QAR(E)+S(D),DCHECK
- Vars
- Q(d);OGATE,P_SPINQ(d),XS(D)::QAR2(E),XQ(d)
- Refutation
- K(b);P_SPINP(a),P_SPINQ(d),S_FLIGHT
- Try
- R(A);CHECK
- Vars
- K(b);P_SPINQ(d),S_FLIGHT::QAR(E)
- Refutation
- P(a);XR(A)
- Try
- Q(E);CHECK
- Vars
- Q(d);N_GUARD,P_SPINQ(d)::QAB1(E),XQ(d)
- Refutation
- K(b);P_SPINP(a),P_SPINQ(d),S_FLIGHT
- Try
- Actual
- Q(E);
- Vars
- Q(d);CHECK,OGATE,XS(D)::QAR2(E),XQ(d)
- K(b);P_SPINP(a),P_SPINQ(d),S_FLIGHT::QAR1(E),XP(c)
- Q(d);N_PINS(D),P_PINQ(E),XB(G)::S(D)
- Q(d);N_GUARD::QAB1(E),XQ(d)
- Q(d);N_GUARD::QAR1(E),XP(c)
- Q(d);N_GUARD,N_PINS(D)::QAR1(E),XP(c)
- Q(d);N_PINS(D),P_PINQ(E)::S(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).