MESON Chess Problem Database
Problem Display
PID: 15287 (2N5/2P4R/pBk3P1/7K/RP3P2/N7/4Q3/7b w - - 0 1)
Narayanan, Chithathuz Gopatan Sathya
5th Place, 02. WCCT, 1980-1983
#2
11 + 3
| 3748 | FIDE Album (1983-1985) | 1992 |
| 5454 | Near Snap | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Qc4#
- 1...Bg2
- 2.Qxg2#
- 1...Bf3+
- 2.Qxf3#
- 1...Be4
- 2.Qxe4#
- 1...Kd5
- Tries
- 1.Sa7+?
- 1...Kd5
- 2.Rd7#
- 2.Qe5#
- 1...Kxb6
- 2.Qxa6#
- 2.c8S#
- 1...Kd6
- 2.Qe5#
- 1...Kb7!
- 1...Kd5
- 1.Bf2?
- 1...Bf3+
- 2.Qxf3#
- 1...Kd5
- 2.Qc4#
- 1...Kb7
- 2.Qxa6#
- 1...Bd5
- 2.Qxa6#
- 1...Be4
- 2.Qxe4#
- 1...a5
- 2.Qb5#
- 1...Bg2!
- 1...Bf3+
- 1.Be3?
- 1...Bf3+
- 2.Qxf3#
- 1...Kd5
- 2.Qc4#
- 1...Kb7
- 2.Qxa6#
- 1...Bd5
- 2.Qxa6#
- 1...Bg2
- 2.Qxg2#
- 1...a5
- 2.Qb5#
- 1...Be4!
- 1...Bf3+
- 1.Bd4?
- 1...Bf3+
- 2.Qxf3#
- 1...Kb7
- 2.Qxa6#
- 1...Bd5
- 2.Qxa6#
- 1...Bg2
- 2.Qxg2#
- 1...Be4
- 2.Qxe4#
- 1...a5
- 2.Qb5#
- 1...Kd5!
- 1...Bf3+
- 1.Ba5?
- 1...Bf3+
- 2.Qxf3#
- 1...Kd5
- 2.Qc4#
- 1...Bd5
- 2.Qxa6#
- 1...Bg2
- 2.Qxg2#
- 1...Be4
- 2.Qxe4#
- 1...Kb7!
- 1...Bf3+
- 1.Bc5?
- 1...Bf3+
- 2.Qxf3#
- 1...Kd5
- 2.Se7#
- 1...Kb7
- 2.Qxa6#
- 1...Bd5
- 2.Qxa6#
- 1...Bg2
- 2.Qxg2#
- 1...Be4
- 2.Qxe4#
- 1...a5!
- 1...Bf3+
- 1.Ba7?
- 1...Bf3+
- 2.Qxf3#
- 1...Kd5
- 2.Qc4#
- 1...Bd5
- 2.Qxa6#
- 1...Bg2
- 2.Qxg2#
- 1...Be4
- 2.Qxe4#
- 1...a5
- 2.Qb5#
- 1...Kb7!
- 1...Bf3+
- 1.Qxa6?
- threat
- 2.Qa8#
- 1...Kd5
- 2.Qc4#
- 1...Bf3+!
- threat
- 1.Qc2+?
- 1...Kd5
- 2.Qc4#
- 1...Kb7!
- 1...Kd5
- 1.Qe8+?
- 1...Kd5
- 2.Ra5#
- 1...Kb7!
- 1...Kd5
- 1.Sa7+?
- Keys
- 1.Bg1!
- 1...Bf3+
- 2.Qxf3#
- 1...Kd5
- 2.Qc4#
- 1...Kb7
- 2.Qxa6#
- 1...Bd5
- 2.Qxa6#
- 1...Bg2
- 2.Qxg2#
- 1...Be4
- 2.Qxe4#
- 1...a5
- 2.Qb5#
- 1...Bf3+
- 1.Bg1!
This anticipates 15288(1980-1983)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(c);S_FLIGHT::QAB1(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);CHECK,N_GUARD::QAB(A),XB(a)
- Tries
- Try
- S(K);CHECK
- Vars
- K(c);P-FLIGHT::QAB1(A)
- Refutation
- K(c);S_FLIGHT
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::QAB(A),XB(a)
- K(c);S_FLIGHT::QAB1(A)
- K(c);S_FLIGHT::QAB1(A),XP(b)
- B(a);SBLOCK::QAR2(A),XP(b)
- B(a);N_GUARD::QAB(A),XB(a)
- P(b);N_GUARD::QAB1(A)
- Refutation
- B(a);
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::QAB(A),XB(a)
- K(c);S_FLIGHT::QAB1(A)
- K(c);S_FLIGHT::QAB1(A),XP(b)
- B(a);SBLOCK::QAR2(A),XP(b)
- B(a);N_GUARD::QAB(A),XB(a)
- P(b);N_GUARD::QAB1(A)
- Refutation
- B(a);
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::QAB(A),XB(a)
- K(c);S_FLIGHT::QAB1(A),XP(b)
- B(a);SBLOCK::QAR2(A),XP(b)
- B(a);N_GUARD::QAB(A),XB(a)
- P(b);N_GUARD::QAB1(A)
- Refutation
- K(c);S_FLIGHT
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::QAB(A),XB(a)
- K(c);S_FLIGHT::QAB1(A)
- B(a);SBLOCK::QAR2(A),XP(b)
- B(a);N_GUARD::QAB(A),XB(a)
- Refutation
- K(c);S_FLIGHT
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::QAB(A),XB(a)
- K(c);S_FLIGHT::S(K)
- K(c);S_FLIGHT::QAB1(A),XP(b)
- B(a);SBLOCK::QAR2(A),XP(b)
- B(a);N_GUARD::QAB(A),XB(a)
- Refutation
- P(b);
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::QAB(A),XB(a)
- K(c);S_FLIGHT::QAB1(A)
- B(a);SBLOCK::QAR2(A),XP(b)
- B(a);N_GUARD::QAB(A),XB(a)
- P(b);N_GUARD::QAB1(A)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(A);XP(b)
- Threat
- QAB(A)
- Vars
- K(c);S_FLIGHT::QAB1(A)
- Refutation
- B(a);CHECK
- Try
- Q(A);CHECK
- Vars
- K(c);S_FLIGHT::QAB1(A)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(c);S_FLIGHT::R(C)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- B(G);
- Vars
- B(a);CHECK,N_GUARD::QAB(A),XB(a)
- K(c);S_FLIGHT::QAB1(A)
- K(c);S_FLIGHT::QAB1(A),XP(b)
- B(a);SBLOCK::QAR2(A),XP(b)
- B(a);N_GUARD::QAB(A),XB(a)
- P(b);N_GUARD::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).