MESON Chess Problem Database
Problem Display
PID: 30756 (8/8/2K2p2/3Bk3/5p1B/2nQ2p1/6P1/8 w - - 0 1)
Bolus, Andrew
Source?, 1886
#2
5 + 5
| 2638 | White to Play | 1913 |
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sxd5
- 2.Qxd5#
- 1...f3
- 2.Bxg3#
- 1...f5
- 2.Qxc3#
- 1...Sb1
- Tries
- 1.Kc5?
- 1...Se4+
- 2.Qxe4#
- 1...Sxd5
- 2.Qxd5#
- 1...f3
- 2.Bxg3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sb5
- 2.Qe4#
- 1...f5
- 2.Qxc3#
- 2.Qd4#
- 1...Sa4+!
- 1...Se4+
- 1.Bxg3?
- 1...Sxd5
- 2.Qxd5#
- 1...Se4
- 2.Qxe4#
- 1...f5
- 2.Qxc3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Sb5
- 2.Qe4#
- 1...fxg3!
- 1...Sxd5
- 1.Ba2?
- 1...Sxa2
- 2.Qd5#
- 1...Se4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...f3
- 2.Bxg3#
- 1...Sb1
- 2.Qd5#
- 1...Sd1
- 2.Qd5#
- 1...Se2
- 2.Qd5#
- 1...Sa4
- 2.Qd5#
- 1...Sb5
- 2.Qd5#
- 1...f5!
- 1...Sxa2
- 1.Bb3?
- 1...Se4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...f3
- 2.Bxg3#
- 1...Sb1
- 2.Qd5#
- 1...Sd1
- 2.Qd5#
- 1...Sa2
- 2.Qd5#
- 1...Se2
- 2.Qd5#
- 1...Sa4
- 2.Qd5#
- 1...Sb5
- 2.Qd5#
- 1...f5!
- 1...Se4
- 1.Bf3?
- 1...Se4
- 2.Qxe4#
- 2.Qd5#
- 1...f5
- 2.Qd6#
- 1...Sb1
- 2.Qe4#
- 2.Qd5#
- 1...Sd1
- 2.Qe4#
- 2.Qd5#
- 1...Sa2
- 2.Qe4#
- 2.Qd5#
- 1...Se2
- 2.Qe4#
- 2.Qd5#
- 1...Sa4
- 2.Qe4#
- 2.Qd5#
- 1...Sb5
- 2.Qe4#
- 2.Qd5#
- 1...Sd5
- 2.Qe4#
- 2.Qxd5#
- 1...Ke6!
- 1...Se4
- 1.Bc4?
- 1...Se4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...f3
- 2.Bxg3#
- 1...Sb1
- 2.Qd5#
- 1...Sd1
- 2.Qd5#
- 1...Sa2
- 2.Qd5#
- 1...Se2
- 2.Qd5#
- 1...Sa4
- 2.Qd5#
- 1...Sb5
- 2.Qd5#
- 1...f5!
- 1...Se4
- 1.Bf7?
- 1...Se4
- 2.Qd5#
- 1...f3
- 2.Bxg3#
- 1...Sb1
- 2.Qd5#
- 1...Sd1
- 2.Qd5#
- 1...Sa2
- 2.Qd5#
- 1...Se2
- 2.Qd5#
- 1...Sa4
- 2.Qd5#
- 1...Sb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...f5!
- 1...Se4
- 1.Bg8?
- 1...Se4
- 2.Qd5#
- 1...f3
- 2.Bxg3#
- 1...Sb1
- 2.Qd5#
- 1...Sd1
- 2.Qd5#
- 1...Sa2
- 2.Qd5#
- 1...Se2
- 2.Qd5#
- 1...Sa4
- 2.Qd5#
- 1...Sb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...f5!
- 1...Se4
- 1.Qe2+?
- 1...Kd4
- 2.Bxf6#
- 1...Kf5
- 2.Qh5#
- 1...Se4
- 2.Qxe4#
- 1...Sxe2!
- 1...Kd4
- 1.Kc5?
- Keys
- 1.Qf3!
- 1...Kd4
- 2.Bxf6#
- 1...Kf5
- 2.Qh5#
- 1...Sxd5
- 2.Qxd5#
- 1...f5
- 2.Qxc3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Kd4
- 1.Qf3!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- S(a);OGATE,XB(D)::QAR1(B),XS(a)
- P(c);OGATEB::B(C),XP(b)
- P(e);SBLOCK::QAB(B),XS(a)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- S(a);CHECK,N_GUARD::QAR1(B),XS(a)
- S(a);OGATE,XB(D)::QAR1(B),XS(a)
- P(c);OGATEB::B(C),XP(b)
- S(a);N_GUARD::QAR1(B)
- Refutation
- S(a);CHECK
- Try
- B(C);P_PINP(c),XP(b)
- Vars
- S(a);OGATE,XB(D)::QAR1(B),XS(a)
- S(a);N_GUARD::QAR1(B),XS(a)
- P(e);SBLOCK::QAB(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- Refutation
- P(c);N_SPINP(c),XB(C)
- Try
- B(D);
- Vars
- S(a);N_GUARD,XB(D)::QAR1(B)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- P(c);OGATEB::B(C),XP(b)
- Refutation
- P(e);
- Try
- B(D);
- Vars
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- P(c);OGATEB::B(C),XP(b)
- Refutation
- P(e);
- Try
- B(D);
- Vars
- P(e);SBLOCK::QAB1(B)
- Refutation
- K(d);P-FLIGHT
- Try
- B(D);
- Vars
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- P(c);OGATEB::B(C),XP(b)
- Refutation
- P(e);
- Try
- B(D);
- Vars
- S(a);N_GUARD::QAR1(B)
- P(c);OGATEB::B(C),XP(b)
- S(a);N_GUARD::QAR1(B),XS(a)
- Refutation
- P(e);
- Try
- B(D);
- Vars
- S(a);N_GUARD::QAR1(B)
- P(c);OGATEB::B(C),XP(b)
- S(a);N_GUARD::QAR1(B),XS(a)
- Refutation
- P(e);
- Try
- Q(B);CHECK
- Vars
- K(d);S_FLIGHT::B(C),XP(e)
- K(d);P-FLIGHT::QAR2(B)
- S(a);N_GUARD,P_SPINS(a)::QAR1(B),XS(a)
- Refutation
- S(a);XQ(B)
- Try
- Actual
- Q(B);
- Vars
- K(d);S_FLIGHT::B(C),XP(e)
- K(d);P-FLIGHT,P_SPINP(c)::QAR2(B)
- S(a);OGATE,XB(D)::QAR1(B),XS(a)
- P(e);SBLOCK::QAB(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(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).