MESON Chess Problem Database
Problem Display
PID: 59830 (8/8/1Q3p2/pP1p1P2/P1P1P3/2kP4/3p1N2/1R1K4 w - - 0 1)
Valuska, Jan
4th Prize, Vychodoslovenske noviny, 1969
#2
10 + 5
| 3751 | FIDE Album (1968-1970) | 1977 |
SOLUTION
- SOUND
- Sets
- 1...dxc4
- 2.Qxf6#
- 1...dxe4
- 2.Qxf6#
- 1...d4
- 2.Qxa5#
- 1...dxc4
- Tries
- 1.Qc5?
- threat
- 2.cxd5#
- 1...dxc4
- 2.Qxc4#
- 1...d4
- 2.Qa3#
- 1...dxe4!
- threat
- 1.Qd8?
- 1...dxc4
- 2.Qxf6#
- 1...dxe4
- 2.Sxe4#
- 2.Qxf6#
- 1...d4
- 2.Qxa5#
- 1...Kd4!
- 1...dxc4
- 1.Qa6?
- 1...dxc4
- 2.Qxf6#
- 1...dxe4
- 2.Qxf6#
- 1...d4
- 2.Qxa5#
- 1...Kd4!
- 1...dxc4
- 1.Qd6?
- 1...dxc4
- 2.Qxf6#
- 1...dxe4
- 2.Sxe4#
- 2.Qxf6#
- 1...d4
- 2.Qa3#
- 1...Kd4!
- 1...dxc4
- 1.c5?
- 1...dxe4
- 2.Qxf6#
- 1...d4
- 2.Qxa5#
- 1...Kd4!
- 1...dxe4
- 1.Qc5?
- Keys
- 1.Qe3!
- 1...dxc4
- 2.d4#
- 1...dxe4
- 2.Sxe4#
- 1...d4
- 2.Qxd2#
- 1...dxc4
- 1.Qe3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- P(d);N_GUARD,XP(F)::QAB(J),XP(e)
- P(d);N_GUARD,XP(G)::QAB(J),XP(e)
- P(d);SBLOCK::QAB(J),XP(c)
- Tries
- Try
- Q(J);
- Threat
- QAR(J)+P(F),XP(d)
- Vars
- P(d);OGATE,P_SPINP(d),XP(F)::QAR1(J),XP(d)
- P(d);SBLOCK::QAR2(J)
- Refutation
- P(d);XP(G)
- Try
- Q(J);
- Vars
- P(d);N_GUARD,XP(F)::QAB(J),XP(e)
- P(d);SBLOCK::QAB(J),XP(c)
- Refutation
- K(b);P_SPINP(d),S_FLIGHT
- Try
- Q(J);
- Vars
- P(d);N_GUARD,XP(F)::QAB(J),XP(e)
- P(d);N_GUARD,XP(G)::QAB(J),XP(e)
- P(d);SBLOCK::QAB(J),XP(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(J);
- Vars
- P(d);N_GUARD,XP(F)::QAB(J),XP(e)
- P(d);SBLOCK::QAR2(J)
- Refutation
- K(b);P_SPINP(d),S_FLIGHT
- Try
- P(F);
- Vars
- P(d);N_GUARD,XP(G)::QAB(J),XP(e)
- P(d);SBLOCK::QAB(J),XP(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Actual
- Q(J);
- Vars
- P(d);SBLOCK,XP(F)::QAR(J)+P(D)
- P(d);XP(G)::S(C),XP(d)
- P(d);SBLOCK::QAB1(J),XP(a)
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).