MESON Chess Problem Database
Problem Display
PID: 1939 (8/4p3/1K6/1N1k4/3p4/6N1/8/5Q2 w - - 0 1)
Frigin, Valery Fedorovich
1st Prize, Tzudovie zezezvi, 1985-1986
#2
4 + 3
| 3296 | Shakhmatny zadachi miniaturi | 1987 |
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Qf5#
- 1...Ke6
- 2.Qf5#
- 1...e5
- 2.Qf7#
- 1...Ke5
- Tries
- 1.Qe2?
- 1...d3
- 2.Qe4#
- 1...e5
- 2.Qa2#
- 1...e6!
- 1...d3
- 1.Qf3+?
- 1...Ke5
- 2.Qf5#
- 1...Ke6
- 2.Qf5#
- 1...Kc4!
- 1...Ke5
- 1.Qf4?
- 1...Ke6
- 2.Qf5#
- 1...d3
- 2.Sc7#
- 2.Qe4#
- 1...e5
- 2.Qf7#
- 1...e6
- 2.Qxd4#
- 1...Kc4!
- 1...Ke6
- 1.Qf5+?
- 1...e5
- 2.Qf7#
- 1...Kc4!
- 1...e5
- 1.Qf7+?
- 1...Ke5
- 2.Qf5#
- 1...e6!
- 1...Ke5
- 1.Qe2?
- Keys
- 1.Qd3!
- 1...Ke5
- 2.Qf5#
- 1...Ke6
- 2.Qf5#
- 1...e5
- 2.Qb3#
- 1...e6
- 2.Qxd4#
- 1...Ke5
- 1.Qd3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(b);P-FLIGHT::QAR1(A)
- K(b);S_FLIGHT::QAB1(A)
- P(c);N_GUARD,SBLOCK::QAB(A)
- Tries
- Try
- Q(A);
- Vars
- P(a);::QAB1(A)
- P(c);SBLOCK::QAB(A)
- Refutation
- P(c);
- Try
- Q(A);CHECK
- Vars
- K(b);P-FLIGHT::QAR1(A)
- K(b);S_FLIGHT::QAB1(A)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(A);
- Vars
- K(b);S_FLIGHT::QAB1(A)
- P(c);N_GUARD,SBLOCK::QAB(A)
- P(c);SBLOCK::QAR1(A),XP(a)
- Refutation
- K(b);P_SPINP(a),S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- P(c);N_GUARD,P_SPINP(c),SBLOCK::QAB(A)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(b);P-FLIGHT::QAR1(A)
- Refutation
- P(c);P_SPINP(c)
- Try
- Actual
- Q(A);P_PINP(a)
- Vars
- K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
- K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
- P(c);SBLOCK::QAB(A)
- P(c);SBLOCK::QAR1(A),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).