MESON Chess Problem Database
Problem Display
PID: 149904 (3N4/p3p3/p1pkPp2/B2p1p2/5Pp1/3Q2K1/8/8 w - - 0 1)
Burr, Otto
Moscow Ty., 2007
#2
6 + 9
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Kc5
- 2.Sb7#
- 1...d4
- 2.Qxd4#
- 1...c5
- 2.Qxa6#
- 1...Kc5
- Tries
- 1.Kf2?
- 1...Kc5
- 2.Sb7#
- 1...d4
- 2.Qxd4#
- 1...c5
- 2.Qxa6#
- 1...g3+!
- 1...Kc5
- 1.Kg2?
- 1...Kc5
- 2.Sb7#
- 1...d4
- 2.Qxd4#
- 1...c5
- 2.Qxa6#
- 1...g3!
- 1...Kc5
- 1.Kh2?
- 1...Kc5
- 2.Sb7#
- 1...d4
- 2.Qxd4#
- 1...c5
- 2.Qxa6#
- 1...g3+!
- 1...Kc5
- 1.Kh4?
- 1...Kc5
- 2.Sb7#
- 1...d4
- 2.Qxd4#
- 1...c5
- 2.Qxa6#
- 1...g3!
- 1...Kc5
- 1.Qb1?
- 1...Kc5
- 2.Qb4#
- 1...c5
- 2.Qb8#
- 1...d4!
- 1...Kc5
- 1.Qc4?
- threat
- 2.Qxc6#
- 1...c5
- 2.Qxa6#
- 1...dxc4!
- threat
- 1.Qd2?
- 1...Kc5
- 2.Qb4#
- 1...d4
- 2.Qxd4#
- 1...c5!
- 1...Kc5
- 1.Qe3?
- threat
- 2.Sb7#
- 2.Sf7#
- 1...d4
- 2.Qxd4#
- 1...c5!
- threat
- 1.Kf2?
- Keys
- 1.Qb3!
- 1...Kc5
- 2.Qb4#
- 1...c5
- 2.Qb8#
- 1...d4
- 2.Sb7#
- 1...Kc5
- 1.Qb3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(f);N_SPINP(b),S_FLIGHT::S(F)
- P(b);OGATEB::QAR2(A),XP(b)
- P(e);OGATEB,SBLOCK::QAR(A),XP(d)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- K(f);N_SPINP(b),S_FLIGHT::S(F)
- P(b);OGATEB::QAR2(A),XP(b)
- P(e);OGATEB,SBLOCK::QAR(A),XP(d)
- Refutation
- P(a);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- K(f);N_SPINP(b),S_FLIGHT::S(F)
- P(b);OGATEB::QAR2(A),XP(b)
- P(e);OGATEB,SBLOCK::QAR(A),XP(d)
- Refutation
- P(a);
- Try
- K(B);S_FLIGHT
- Vars
- K(f);N_SPINP(b),S_FLIGHT::S(F)
- P(b);OGATEB::QAR2(A),XP(b)
- P(e);OGATEB,SBLOCK::QAR(A),XP(d)
- Refutation
- P(a);CHECK
- Try
- K(B);S_FLIGHT
- Vars
- K(f);N_SPINP(b),S_FLIGHT::S(F)
- P(b);OGATEB::QAR2(A),XP(b)
- P(e);OGATEB,SBLOCK::QAR(A),XP(d)
- Refutation
- P(a);
- Try
- Q(A);N_PINP(b)
- Vars
- K(f);S_FLIGHT::QAB1(A)
- P(e);SBLOCK::QAB(A)
- Refutation
- P(b);
- Try
- Q(A);N_PINP(b)
- Threat
- QAR1(A),XP(e)
- Vars
- P(e);OGATEB,SBLOCK::QAR(A),XP(d)
- Refutation
- P(b);XQ(A)
- Try
- Q(A);
- Vars
- K(f);N_SPINP(b),S_FLIGHT::QAB1(A)
- P(b);OGATEB::QAR2(A),XP(b)
- Refutation
- P(e);
- Try
- Q(A);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- P(b);OGATEB::QAR2(A),XP(b)
- Refutation
- P(e);
- Try
- Actual
- Q(A);N_PINP(b)
- Vars
- K(f);S_FLIGHT::QAB1(A)
- P(e);SBLOCK::QAB(A)
- P(b);::S(F)
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).