MESON Chess Problem Database
Problem Display
PID: 234834 (1BN5/p1n5/2k5/P1N5/3P4/R1P5/B7/2K5 w - - 0 1)
Groeneveld, Cornelis
Schach, 1953
#2
9 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kb5
- 2.Sxa7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 1...Sa6
- 2.Sxa7#
- 1...Se6
- 2.Sxa7#
- 1...Sa8
- 2.Sxa7#
- 1...Se8
- 2.Sxa7#
- 1...Kb5
- Tries
- 1.Kb1?
- 1...Kb5
- 2.Sxa7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 1...Sa6
- 2.Sxa7#
- 1...Se6
- 2.Sxa7#
- 1...Sa8
- 2.Sxa7#
- 1...Se8
- 2.Sxa7#
- 1...a6!
- 1...Kb5
- 1.Kd1?
- 1...Kb5
- 2.Sxa7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 1...Sa6
- 2.Sxa7#
- 1...Se6
- 2.Sxa7#
- 1...Sa8
- 2.Sxa7#
- 1...Se8
- 2.Sxa7#
- 1...a6!
- 1...Kb5
- 1.Kb2?
- 1...Kb5
- 2.Sxa7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 1...Sa6
- 2.Sxa7#
- 1...Se6
- 2.Sxa7#
- 1...Sa8
- 2.Sxa7#
- 1...Se8
- 2.Sxa7#
- 1...a6!
- 1...Kb5
- 1.Kc2?
- 1...Kb5
- 2.Sxa7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 1...Sa6
- 2.Sxa7#
- 1...Se6
- 2.Sxa7#
- 1...Sa8
- 2.Sxa7#
- 1...Se8
- 2.Sxa7#
- 1...a6!
- 1...Kb5
- 1.Kd2?
- 1...Kb5
- 2.Sxa7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 1...Sa6
- 2.Sxa7#
- 1...Se6
- 2.Sxa7#
- 1...Sa8
- 2.Sxa7#
- 1...Se8
- 2.Sxa7#
- 1...a6!
- 1...Kb5
- 1.Bb3?
- 1...Kb5
- 2.Sxa7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 2.Ba4#
- 1...Sa6
- 2.Sxa7#
- 1...Se6
- 2.Sxa7#
- 1...Sa8
- 2.Sxa7#
- 1...Se8
- 2.Sxa7#
- 1...a6!
- 1...Kb5
- 1.Bc4?
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 1...Sa6
- 2.Sxa7#
- 2.Se7#
- 1...Se6
- 2.Sxa7#
- 2.Se7#
- 1...Sa8
- 2.Sxa7#
- 2.Se7#
- 1...Se8
- 2.Sxa7#
- 2.Se7#
- 1...a6!
- 1...Sb5
- 1.Bd5+?
- 1...Kb5
- 2.Sd6#
- 2.Sxa7#
- 1...Sxd5
- 2.Sxa7#
- 1...Kxd5!
- 1...Kb5
- 1.Ra4?
- 1...Kb5
- 2.Sxa7#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 1...Sa6
- 2.Sxa7#
- 1...Se6
- 2.Sxa7#
- 1...Sa8
- 2.Sxa7#
- 1...Se8
- 2.Sxa7#
- 1...a6!
- 1...Kb5
- 1.c4?
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 1...Sa6
- 2.Sxa7#
- 2.Se7#
- 1...Se6
- 2.Sxa7#
- 2.Se7#
- 1...Sa8
- 2.Sxa7#
- 2.Se7#
- 1...Se8
- 2.Sxa7#
- 2.Se7#
- 1...a6!
- 1...Sb5
- 1.Kb1?
- Keys
- 1.Rb3!
- 1...Kd5
- 2.Rb6#
- 1...a6
- 2.Rb6#
- 1...Sb5
- 2.Se7#
- 1...Sd5
- 2.Sxa7#
- 1...Sa6
- 2.Se7#
- 1...Se6
- 2.Se7#
- 1...Sa8
- 2.Se7#
- 1...Se8
- 2.Se7#
- 1...Kd5
- 1.Rb3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- K(a);S_FLIGHT::S(I),XP(b)
- S(c);SBLOCK::S(I)
- S(c);::S(I),XP(b)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(a);S_FLIGHT::S(I),XP(b)
- S(c);SBLOCK::S(I)
- S(c);::S(I),XP(b)
- Refutation
- P(b);
- Try
- K(A);P-FLIGHT
- Vars
- K(a);S_FLIGHT::S(I),XP(b)
- S(c);SBLOCK::S(I)
- S(c);::S(I),XP(b)
- Refutation
- P(b);
- Try
- K(A);S_FLIGHT
- Vars
- K(a);S_FLIGHT::S(I),XP(b)
- S(c);SBLOCK::S(I)
- S(c);::S(I),XP(b)
- Refutation
- P(b);
- Try
- K(A);P-FLIGHT
- Vars
- K(a);S_FLIGHT::S(I),XP(b)
- S(c);SBLOCK::S(I)
- S(c);::S(I),XP(b)
- Refutation
- P(b);
- Try
- K(A);S_FLIGHT
- Vars
- K(a);S_FLIGHT::S(I),XP(b)
- S(c);SBLOCK::S(I)
- S(c);::S(I),XP(b)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- K(a);S_FLIGHT::S(I),XP(b)
- S(c);SBLOCK::S(I)
- S(c);::S(I),XP(b)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- S(c);::S(I)
- S(c);::S(I),XP(b)
- Refutation
- P(b);
- Try
- B(B);CHECK
- Vars
- S(c);SBLOCK,XB(B)::S(I),XP(b)
- Refutation
- K(a);S_FLIGHT,XB(B)
- Try
- R(C);
- Vars
- K(a);S_FLIGHT::S(I),XP(b)
- S(c);SBLOCK::S(I)
- S(c);::S(I),XP(b)
- Refutation
- P(b);
- Try
- P(D);
- Vars
- S(c);::S(I)
- S(c);::S(I),XP(b)
- Refutation
- P(b);
- Try
- Actual
- R(C);
- Vars
- K(a);S_FLIGHT::B(B)+R(C)
- P(b);N_GUARD::R1(C)
- S(c);::S(I)
- S(c);SBLOCK::S(I),XP(b)
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).