MESON Chess Problem Database
Problem Display
PID: 183338 (2Q5/K7/8/1p6/kp6/N7/8/1N6 w - - 0 1)
Oplyan, Ekaterina
Kudesnik, 2018
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Kb3
- 2.Qc2#
- 1...Ka5
- 2.Qa6#
- 1...Kb3
- Tries
- 1.Sc2?
- 1...Ka5
- 2.Qa6#
- 1...b3
- 2.Qa6#
- 1...Kb3!
- 1...Ka5
- 1.Qf5?
- 1...Kb3
- 2.Qc2#
- 1...Ka5
- 2.Qxb5#
- 1...b3
- 2.Qxb5#
- 1...bxa3!
- 1...Kb3
- 1.Qc4?
- 1...Ka5
- 2.Qxb5#
- 1...bxc4!
- 1...Ka5
- 1.Qc6?
- 1...Kb3
- 2.Qc2#
- 1...Ka5
- 2.Qxb5#
- 2.Qa6#
- 1...b3
- 2.Qxb5#
- 1...bxa3!
- 1...Kb3
- 1.Sc2?
- Keys
- 1.Qc5!
- 1...Kb3
- 2.Qc2#
- 1...Ka5
- 2.Qxb5#
- 1...bxa3
- 2.Qxa3#
- 1...b3
- 2.Qxb5#
- 1...Kb3
- 1.Qc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT::QAB1(D)
- K(a);P-FLIGHT::QAR1(D)
- Tries
- Try
- S(B);
- Vars
- K(a);P-FLIGHT::QAR1(D)
- P(b);SBLOCK::QAR2(D)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(D);
- Vars
- K(a);S_FLIGHT::QAB1(D)
- K(a);P-FLIGHT,P_SPINP(c)::QAR1(D),XP(c)
- P(b);::QAB1(D),XP(c)
- Refutation
- P(b);XS(B)
- Try
- Q(D);P_PINP(b)
- Vars
- K(a);N_SPINP(b),P-FLIGHT::QAR1(D),XP(c)
- Refutation
- P(c);N_SPINP(b),XQ(D)
- Try
- Q(D);P_PINP(c)
- Vars
- K(a);N_SPINP(c),S_FLIGHT::QAB1(D)
- P(b);::QAB1(D),XP(c)
- Refutation
- P(b);XS(B)
- Try
- Actual
- Q(D);
- Vars
- K(a);S_FLIGHT::QAB1(D)
- K(a);P-FLIGHT,P_SPINP(c)::QAR1(D),XP(c)
- P(b);OGATE,XS(B)::QAR1(D),XP(b)
- P(b);::QAB1(D),XP(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).