MESON Chess Problem Database
Problem Display
PID: 216691 (8/8/8/8/8/5Q1K/4Rp1B/4qk2 w - - 0 1)
Burbach, Johannes Jacob
Deutsche Schachzeitung, 1988
#2
4 + 3
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Qxf2#
- 1...Qb4
- 2.Qxf2#
- 1...Qa5
- 2.Qxf2#
- 1...Qa1
- 2.Qxf2#
- 1...Qb1
- 2.Qxf2#
- 1...Qc1
- 2.Qxf2#
- 1...Qd1
- 2.Qxf2#
- 1...Qxe2
- 2.Qh1#
- 1...Qd2
- Tries
- 1.Kg3?
- 1...Qxe2
- 2.Qh1#
- 1...Qd2
- 2.Qxf2#
- 1...Qb4
- 2.Qxf2#
- 1...Qa5
- 2.Qxf2#
- 1...Qa1
- 2.Qxf2#
- 1...Qb1
- 2.Qxf2#
- 1...Qc1
- 2.Qxf2#
- 1...Qd1
- 2.Qxf2#
- 1...Qc3!
- 1...Qxe2
- 1.Kh4?
- 1...Qxe2
- 2.Qh1#
- 1...Qd2
- 2.Qxf2#
- 1...Qc3
- 2.Qxf2#
- 1...Qa5
- 2.Qxf2#
- 1...Qa1
- 2.Qxf2#
- 1...Qb1
- 2.Qxf2#
- 1...Qc1
- 2.Qxf2#
- 1...Qd1
- 2.Qxf2#
- 1...Qb4+!
- 1...Qxe2
- 1.Bf4?
- 1...Kg1
- 2.Qg2#
- 1...Qxe2
- 2.Qh1#
- 1...Qd2
- 2.Qxf2#
- 1...Qb4
- 2.Qxf2#
- 1...Qa5
- 2.Qxf2#
- 1...Qa1
- 2.Qxf2#
- 1...Qb1
- 2.Qxf2#
- 1...Qc1
- 2.Qxf2#
- 1...Qd1
- 2.Qxf2#
- 1...Qc3!
- 1...Kg1
- 1.Be5?
- 1...Kg1
- 2.Qg2#
- 1...Qxe2
- 2.Qh1#
- 1...Qd2
- 2.Qxf2#
- 1...Qb4
- 2.Qxf2#
- 1...Qa5
- 2.Qxf2#
- 1...Qa1
- 2.Qxf2#
- 1...Qb1
- 2.Qxf2#
- 1...Qc1
- 2.Qxf2#
- 1...Qd1
- 2.Qxf2#
- 1...Qc3!
- 1...Kg1
- 1.Bd6?
- 1...Kg1
- 2.Qg2#
- 1...Qxe2
- 2.Qh1#
- 1...Qd2
- 2.Qxf2#
- 1...Qb4
- 2.Qxf2#
- 1...Qa5
- 2.Qxf2#
- 1...Qa1
- 2.Qxf2#
- 1...Qb1
- 2.Qxf2#
- 1...Qc1
- 2.Qxf2#
- 1...Qd1
- 2.Qxf2#
- 1...Qc3!
- 1...Kg1
- 1.Bc7?
- 1...Kg1
- 2.Qg2#
- 1...Qxe2
- 2.Qh1#
- 1...Qd2
- 2.Qxf2#
- 1...Qb4
- 2.Qxf2#
- 1...Qa5
- 2.Qxf2#
- 1...Qa1
- 2.Qxf2#
- 1...Qb1
- 2.Qxf2#
- 1...Qc1
- 2.Qxf2#
- 1...Qd1
- 2.Qxf2#
- 1...Qc3!
- 1...Kg1
- 1.Bb8?
- 1...Kg1
- 2.Qg2#
- 1...Qxe2
- 2.Qh1#
- 1...Qd2
- 2.Qxf2#
- 1...Qb4
- 2.Qxf2#
- 1...Qa5
- 2.Qxf2#
- 1...Qa1
- 2.Qxf2#
- 1...Qb1
- 2.Qxf2#
- 1...Qc1
- 2.Qxf2#
- 1...Qd1
- 2.Qxf2#
- 1...Qc3!
- 1...Kg1
- 1.Re3?
- threat
- 2.Qh1#
- 2.Qg2#
- 1...Qe2
- 2.Qh1#
- 2.Qxe2#
- 1...Qxe3!
- threat
- 1.Qe3?
- 1...Qc3
- 2.Rxf2#
- 1...Qd2
- 2.Qxf2#
- 1...Qb4
- 2.Rxf2#
- 2.Qxf2#
- 1...Qa5
- 2.Rxf2#
- 2.Qxf2#
- 1...Qa1
- 2.Rxf2#
- 2.Qxf2#
- 1...Qb1
- 2.Rxf2#
- 2.Qxf2#
- 1...Qc1
- 2.Rxf2#
- 2.Qxf2#
- 1...Qd1
- 2.Rxf2#
- 2.Qxf2#
- 1...Qxe2!
- 1...Qc3
- 1.Kg3?
- Keys
- 1.Bg3!
- 1...Kg1
- 2.Qg2#
- 1...Qxe2
- 2.Qh1#
- 1...Qc3
- 2.Qxf2#
- 1...Qd2
- 2.Qxf2#
- 1...Qb4
- 2.Qxf2#
- 1...Qa5
- 2.Qxf2#
- 1...Qa1
- 2.Qxf2#
- 1...Qb1
- 2.Qxf2#
- 1...Qc1
- 2.Qxf2#
- 1...Qd1
- 2.Qxf2#
- 1...Kg1
- 1.Bg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(a);N_GUARD::QAR1(C),XP(c)
- Q(a);SBLOCK,XR(A)::QAR2(C)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- Q(a);SBLOCK,XR(A)::QAR2(C)
- Q(a);N_GUARD::QAR1(C),XP(c)
- Refutation
- Q(a);P_PINQ(C)
- Try
- K(D);P-FLIGHT
- Vars
- Q(a);SBLOCK,XR(A)::QAR2(C)
- Q(a);N_GUARD::QAR1(C),XP(c)
- Refutation
- Q(a);CHECK
- Try
- B(B);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- Q(a);SBLOCK,XR(A)::QAR2(C)
- Q(a);N_GUARD::QAR1(C),XP(c)
- Refutation
- Q(a);P_PINQ(C)
- Try
- B(B);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- Q(a);SBLOCK,XR(A)::QAR2(C)
- Q(a);N_GUARD::QAR1(C),XP(c)
- Refutation
- Q(a);P_PINQ(C)
- Try
- B(B);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- Q(a);SBLOCK,XR(A)::QAR2(C)
- Q(a);N_GUARD::QAR1(C),XP(c)
- Refutation
- Q(a);P_PINQ(C)
- Try
- B(B);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- Q(a);SBLOCK,XR(A)::QAR2(C)
- Q(a);N_GUARD::QAR1(C),XP(c)
- Refutation
- Q(a);P_PINQ(C)
- Try
- B(B);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- Q(a);SBLOCK,XR(A)::QAR2(C)
- Q(a);N_GUARD::QAR1(C),XP(c)
- Refutation
- Q(a);P_PINQ(C)
- Try
- R(A);
- Threat
- DUALS(2)
- Refutation
- Q(a);P_PINQ(C),XR(A)
- Try
- Q(C);N_PINP(c)
- Vars
- Q(a);N_GUARD,P_PINQ(C)::R1(A),XP(c)
- Q(a);N_GUARD::QAR1(C),XP(c)
- Refutation
- Q(a);XR(A)
- Try
- Actual
- B(B);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- Q(a);SBLOCK,XR(A)::QAR2(C)
- Q(a);N_GUARD::QAR1(C),XP(c)
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).