MESON Chess Problem Database
Problem Display
PID: 80942 (8/2K5/8/1Bkp4/2P5/5R2/8/7Q w - - 0 1)
Asov, Aleksei
Problemist Pribuzhya, 1991
#2
5 + 2
SOLUTION
- SOUND
- Tries
- 1.Rb3?
- threat
- 2.Qxd5#
- 1...Kd4
- 2.Qxd5#
- 1...d4
- 2.Qd5#
- 2.Qc6#
- 2.Qh5#
- 1...dxc4!
- threat
- 1.Qa1?
- 1...Kb4
- 2.Qa3#
- 1...d4
- 2.Qa3#
- 1...dxc4!
- 1...Kb4
- 1.Qe1?
- 1...Kd4
- 2.Qe3#
- 1...d4
- 2.Rf5#
- 2.Qe7#
- 1...dxc4!
- 1...Kd4
- 1.Qh4?
- 1...dxc4
- 2.Qxc4#
- 1...d4
- 2.Qe7#
- 1...Kb4!
- 1...dxc4
- 1.Qh5?
- 1...Kd4
- 2.Qxd5#
- 1...Kb4!
- 1...Kd4
- 1.Rb3?
- Keys
- 1.Qc1!
- 1...Kb4
- 2.Qa3#
- 1...Kd4
- 2.Qe3#
- 1...dxc4
- 2.Qxc4#
- 1...d4
- 2.Qa3#
- 1...Kb4
- 1.Qc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(B);
- Threat
- QAR1(A),XP(b)
- Vars
- K(a);S_FLIGHT::QAR1(A),XP(b)
- Refutation
- P(b);XP(C)
- Try
- Q(A);
- Vars
- K(a);S_FLIGHT::QAB1(A)
- P(b);SBLOCK::QAB(A)
- Refutation
- P(b);XP(C)
- Try
- Q(A);
- Vars
- K(a);S_FLIGHT::QAB1(A)
- Refutation
- P(b);XP(C)
- Try
- Q(A);
- Vars
- P(b);OGATE,XP(C)::QAR1(A),XP(b)
- P(b);SBLOCK::QAB(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(A);P_PINP(b)
- Vars
- K(a);N_SPINP(b),S_FLIGHT::QAR1(A),XP(b)
- Refutation
- K(a);N_SPINP(b),S_FLIGHT
- Try
- Actual
- Q(A);
- Vars
- K(a);S_FLIGHT::QAB1(A)
- P(b);OGATE,P_SPINP(b),XP(C)::QAR1(A),XP(b)
- P(b);SBLOCK::QAB(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).