MESON Chess Problem Database
Problem Display
PID: 97572 (8/1Np2p1p/7Q/4k3/8/2N5/3B4/1B5K w - - 0 1)
Burger, Robert Eugene
US Problem Bulletin, 1991
#2
6 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Qf4#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...f6
- 2.Qe3#
- 1...Kd4
- Tries
- 1.Kg1?
- 1...Kd4
- 2.Qf4#
- 1...f6
- 2.Qe3#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...f5!
- 1...Kd4
- 1.Kg2?
- 1...Kd4
- 2.Qf4#
- 1...f6
- 2.Qe3#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...f5!
- 1...Kd4
- 1.Kh2?
- 1...Kd4
- 2.Qf4#
- 1...f6
- 2.Qe3#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...f5!
- 1...Kd4
- 1.Sa5?
- threat
- 2.Sc6#
- 1...Kd4
- 2.Qe3#
- 1...c6
- 2.Sxc6#
- 1...f6!
- threat
- 1.Sd8?
- threat
- 2.Sc6#
- 2.Qf4#
- 1...f6
- 2.Qf4#
- 1...f5
- 2.Sc6#
- 1...c6
- 2.Sxc6#
- 2.Qf4#
- 1...Kd4!
- threat
- 1.Bc2?
- 1...Kd4
- 2.Qf4#
- 1...f6
- 2.Qe3#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...f5!
- 1...Kd4
- 1.Bd3?
- 1...Kd4
- 2.Qe3#
- 1...f6
- 2.Qe3#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...f5!
- 1...Kd4
- 1.Bxh7?
- 1...Kd4
- 2.Qf4#
- 1...f6
- 2.Qe3#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...f5!
- 1...Kd4
- 1.Be1?
- 1...Kd4
- 2.Qf4#
- 1...f6
- 2.Qe3#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...f5!
- 1...Kd4
- 1.Bg5?
- threat
- 2.Qf6#
- 1...f6
- 2.Qxf6#
- 1...Kd4!
- threat
- 1.Kg1?
- Keys
- 1.Ba2!
- threat
- 2.Qf4#
- 1...Kd4
- 2.Qe3#
- 1...Kf5
- 2.Qg5#
- 1...f5
- 2.Qg7#
- threat
- 1.Ba2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- K(a);S_FLIGHT::QAR2(E)
- P(b);N_GUARD::QAB1(E)
- P(c);SBLOCK::QAR2(E)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- K(a);S_FLIGHT::QAR2(E)
- P(c);SBLOCK::QAR2(E)
- P(b);N_GUARD::QAB1(E)
- Refutation
- P(c);
- Try
- K(B);S_FLIGHT
- Vars
- K(a);S_FLIGHT::QAR2(E)
- P(c);SBLOCK::QAR2(E)
- P(b);N_GUARD::QAB1(E)
- Refutation
- P(c);
- Try
- K(B);P-FLIGHT
- Vars
- K(a);S_FLIGHT::QAR2(E)
- P(c);SBLOCK::QAR2(E)
- P(b);N_GUARD::QAB1(E)
- Refutation
- P(c);
- Try
- S(F);
- Threat
- S(F)
- Vars
- K(a);S_FLIGHT::QAB1(E)
- P(b);::S(F),XP(b)
- Refutation
- P(c);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(E)
- P(c);::S(F)
- Refutation
- K(a);S_FLIGHT
- Try
- B(A);
- Vars
- K(a);S_FLIGHT::QAR2(E)
- P(c);SBLOCK::QAR2(E)
- P(b);N_GUARD::QAB1(E)
- Refutation
- P(c);
- Try
- B(A);
- Vars
- K(a);S_FLIGHT::QAB1(E)
- P(c);SBLOCK::QAR2(E)
- P(b);N_GUARD::QAB1(E)
- Refutation
- P(c);
- Try
- B(A);XP(d)
- Vars
- K(a);S_FLIGHT::QAR2(E)
- P(c);SBLOCK::QAR2(E)
- P(b);N_GUARD::QAB1(E)
- Refutation
- P(c);
- Try
- B(C);
- Vars
- K(a);S_FLIGHT::QAR2(E)
- P(c);SBLOCK::QAR2(E)
- P(b);N_GUARD::QAB1(E)
- Refutation
- P(c);
- Try
- B(C);
- Threat
- QAB1(E)
- Vars
- P(c);::QAB1(E),XP(c)
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- B(A);
- Threat
- QAB1(E)
- Vars
- K(a);S_FLIGHT::QAB1(E)
- K(a);P-FLIGHT::QAR1(E)
- P(c);N_GUARD,SBLOCK::QAB(E)
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).