MESON Chess Problem Database
Problem Display
PID: 257767 (3K3B/8/3pk3/8/8/8/4B3/Q7 w - - 0 1)
Zhuk, Aleksandr Gnatovich
Zadachi i Etyudi, 2007
#2
4 + 2
SOLUTION
- SOUND
- Sets
- 1...d5
- 2.Qf6#
- 1...d5
- Tries
- 1.Bf3?
- threat
- 2.Qf6#
- 1...Kf5
- 2.Qf6#
- 1...Kf7!
- threat
- 1.Bc4+?
- 1...d5
- 2.Qf6#
- 1...Kf5!
- 1...d5
- 1.Bg4+?
- 1...Kf7
- 2.Qg7#
- 1...Kd5!
- 1...Kf7
- 1.Qd4?
- 1...Kf5
- 2.Qg4#
- 1...d5
- 2.Qf6#
- 1...Kf7!
- 1...Kf5
- 1.Qe5+?
- 1...Kf7
- 2.Qe8#
- 1...dxe5!
- 1...Kf7
- 1.Qg7?
- 1...Kf5
- 2.Qg4#
- 1...d5
- 2.Qf6#
- 2.Qg6#
- 2.Qd7#
- 1...Kd5!
- 1...Kf5
- 1.Qf1?
- 1...d5
- 2.Qf6#
- 1...Kd5!
- 1...d5
- 1.Bf3?
- Keys
- 1.Qa4!
- 1...Kd5
- 2.Qc4#
- 1...Kf5
- 2.Qg4#
- 1...Kf7
- 2.Qe8#
- 1...d5
- 2.Qd7#
- 1...Kd5
- 1.Qa4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- P(a);SBLOCK::QAR1(A)
- Tries
- Try
- B(B);
- Threat
- QAR1(A)
- Vars
- K(b);S_FLIGHT::QAR1(A)
- Refutation
- K(b);S_FLIGHT
- Try
- B(B);CHECK
- Vars
- P(a);P_SPINP(a)::QAR1(A)
- Refutation
- K(b);S_FLIGHT
- Try
- B(B);CHECK
- Vars
- K(b);N_GUARD,S_FLIGHT::QAR1(A)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(A);
- Vars
- K(b);N_GUARD,S_FLIGHT::QAB1(A)
- P(a);SBLOCK::QAR1(A)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(b);OGATE,S_FLIGHT::QAB1(A)
- Refutation
- P(a);XQ(A)
- Try
- Q(A);
- Vars
- K(b);N_GUARD,S_FLIGHT::QAB1(A)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(A);
- Vars
- P(a);SBLOCK::QAR1(A)
- Refutation
- K(b);S_FLIGHT
- Try
- Actual
- Q(A);
- Vars
- K(b);N_GUARD,S_CUTP(a),S_FLIGHT::QAB1(A)
- K(b);N_GUARD,S_FLIGHT::QAB1(A)
- P(a);::QAB1(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).