MESON Chess Problem Database
Problem Display
PID: 136535 (1k5K/p2Q4/p3n3/n7/8/8/8/7B w - - 0 1)
Duras, Oldrich
Shakhmatny Listok, 1924
#2
3 + 5
| 6490 | yacpdb | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Qb7#
- 1...Sc4
- 2.Qb7#
- 1...Sb7
- 2.Qxb7#
- 1...Sd4
- 2.Qd8#
- 1...Sf4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sg5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Sg7
- 2.Qd8#
- 1...Sd8
- 2.Qxd8#
- 1...Sf8
- 2.Qd8#
- 1...Sb3
- Tries
- 1.Kg8?
- 1...Sb7
- 2.Qxb7#
- 1...Sb3
- 2.Qb7#
- 1...Sc4
- 2.Qb7#
- 1...Sd4
- 2.Qd8#
- 1...Sf4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sg5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Sg7
- 2.Qd8#
- 1...Sd8
- 2.Qxd8#
- 1...Sf8
- 2.Qd8#
- 1...Sc6!
- 1...Sb7
- 1.Bg2?
- 1...Sb7
- 2.Qxb7#
- 1...Sb3
- 2.Qb7#
- 1...Sc4
- 2.Qb7#
- 1...Sd4
- 2.Qd8#
- 1...Sf4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sg5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Sg7
- 2.Qd8#
- 1...Sd8
- 2.Qxd8#
- 1...Sf8
- 2.Qd8#
- 1...Sc6!
- 1...Sb7
- 1.Bf3?
- 1...Sb7
- 2.Qxb7#
- 1...Sb3
- 2.Qb7#
- 1...Sc4
- 2.Qb7#
- 1...Sd4
- 2.Qd8#
- 1...Sf4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sg5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Sg7
- 2.Qd8#
- 1...Sd8
- 2.Qxd8#
- 1...Sf8
- 2.Qd8#
- 1...Sc6!
- 1...Sb7
- 1.Be4?
- 1...Sb7
- 2.Qxb7#
- 1...Sb3
- 2.Qb7#
- 1...Sc4
- 2.Qb7#
- 1...Sd4
- 2.Qd8#
- 1...Sf4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sg5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Sg7
- 2.Qd8#
- 1...Sd8
- 2.Qxd8#
- 1...Sf8
- 2.Qd8#
- 1...Sc6!
- 1...Sb7
- 1.Bd5?
- 1...Sb7
- 2.Qxb7#
- 1...Sb3
- 2.Qb7#
- 1...Sc4
- 2.Qb7#
- 1...Sd4
- 2.Qd8#
- 1...Sf4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sg5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Sg7
- 2.Qd8#
- 1...Sd8
- 2.Qxd8#
- 1...Sf8
- 2.Qd8#
- 1...Sc6!
- 1...Sb7
- 1.Bc6?
- 1...Sb7
- 2.Qxb7#
- 1...Sb3
- 2.Qb7#
- 1...Sc4
- 2.Qb7#
- 1...Sd4
- 2.Qd8#
- 1...Sf4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sg5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Sg7
- 2.Qd8#
- 1...Sd8
- 2.Qxd8#
- 1...Sf8
- 2.Qd8#
- 1...Sxc6!
- 1...Sb7
- 1.Qe8+?
- 1...Sd8
- 2.Qxd8#
- 1...Kc7!
- 1...Sd8
- 1.Qd6+?
- 1...Sc7
- 2.Qd8#
- 1...Kc8!
- 1...Sc7
- 1.Kg8?
- Keys
- 1.Ba8!
- 1...Kxa8
- 2.Qc8#
- 1...Sb3
- 2.Qb7#
- 1...Sc4
- 2.Qb7#
- 1...Sc6
- 2.Qb7#
- 1...Sb7
- 2.Qxb7#
- 1...Sd4
- 2.Qd8#
- 1...Sf4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sg5
- 2.Qd8#
- 1...Sc7
- 2.Qd8#
- 1...Sg7
- 2.Qd8#
- 1...Sd8
- 2.Qxd8#
- 1...Sf8
- 2.Qd8#
- 1...Kxa8
- 1.Ba8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- S(c);N_GUARD::QAR2(B)
- S(c);N_GUARD::QAR2(B),XS(c)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR2(B)
- S(c);N_GUARD::QAR2(B),XS(c)
- Refutation
- S(a);
- Try
- B(A);
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR2(B)
- S(c);N_GUARD::QAR2(B),XS(c)
- Refutation
- S(a);
- Try
- B(A);
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR2(B)
- S(c);N_GUARD::QAR2(B),XS(c)
- Refutation
- S(a);
- Try
- B(A);
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR2(B)
- S(c);N_GUARD::QAR2(B),XS(c)
- Refutation
- S(a);
- Try
- B(A);
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR2(B)
- S(c);N_GUARD::QAR2(B),XS(c)
- Refutation
- S(a);
- Try
- B(A);
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR2(B)
- S(c);N_GUARD::QAR2(B),XS(c)
- Refutation
- S(a);XB(A)
- Try
- Q(B);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAR2(B),XS(c)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(B);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAR2(B)
- Refutation
- K(e);P-FLIGHT
- Try
- Actual
- B(A);
- Vars
- K(e);P-FLIGHT,XB(A)::QAR2(B)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- S(c);N_GUARD::QAR2(B)
- S(c);N_GUARD::QAR2(B),XS(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).