MESON Chess Problem Database
Problem Display
PID: 231240 (6bk/8/6Q1/6N1/6nK/6P1/8/8 w - - 0 1)
Gavrilov, Constantin Grigorievich
Revista de Sah, 1927
#2
4 + 3
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ba2
- 2.Qh7#
- 1...Bb3
- 2.Qh7#
- 1...Bc4
- 2.Qh7#
- 1...Bd5
- 2.Qh7#
- 1...Be6
- 2.Qh7#
- 1...Bf7
- 2.Sxf7#
- 2.Qh7#
- 1...Bh7
- 2.Sf7#
- 2.Qxh7#
- 1...Sf2
- 2.Qf6#
- 1...Sh2
- 2.Qf6#
- 1...Se3
- 2.Qf6#
- 1...Se5
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Ba2
- Tries
- 1.Kh3?
- 1...Ba2
- 2.Qh7#
- 1...Bb3
- 2.Qh7#
- 1...Bc4
- 2.Qh7#
- 1...Bd5
- 2.Qh7#
- 1...Be6
- 2.Qh7#
- 1...Bf7
- 2.Sxf7#
- 2.Qh7#
- 1...Bh7
- 2.Sf7#
- 2.Qxh7#
- 1...Sh2
- 2.Qf6#
- 1...Se3
- 2.Qf6#
- 1...Se5
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Sf2+!
- 1...Ba2
- 1.Kxg4?
- threat
- 2.Qf6#
- 1...Ba2
- 2.Qh7#
- 1...Bb3
- 2.Qh7#
- 1...Bc4
- 2.Qh7#
- 1...Bd5
- 2.Qh7#
- 1...Bf7
- 2.Sxf7#
- 2.Qh7#
- 1...Bh7
- 2.Sf7#
- 2.Qxh7#
- 1...Be6+!
- threat
- 1.Qf5?
- 1...Ba2
- 2.Qh7#
- 1...Bb3
- 2.Qh7#
- 1...Bc4
- 2.Qh7#
- 1...Bd5
- 2.Qh7#
- 1...Be6
- 2.Qh7#
- 1...Bf7
- 2.Qh7#
- 1...Bh7
- 2.Qxh7#
- 1...Sf2
- 2.Qe5#
- 2.Qf6#
- 1...Sh2
- 2.Qe5#
- 2.Qf6#
- 1...Se3
- 2.Qe5#
- 2.Qf6#
- 1...Se5
- 2.Qxe5#
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qe5#
- 2.Qf6#
- 1...Kg7!
- 1...Ba2
- 1.Qf7?
- 1...Bh7
- 2.Qxh7#
- 1...Sf2
- 2.Qf6#
- 1...Sh2
- 2.Qf6#
- 1...Se3
- 2.Qf6#
- 1...Se5
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Bxf7!
- 1...Bh7
- 1.Qh6+?
- 1...Bh7
- 2.Qxh7#
- 1...Sxh6!
- 1...Bh7
- 1.Kh3?
- Keys
- 1.Kh5!
- 1...Sf6+
- 2.Qxf6#
- 1...Ba2
- 2.Qh7#
- 1...Bb3
- 2.Qh7#
- 1...Bc4
- 2.Qh7#
- 1...Bd5
- 2.Qh7#
- 1...Be6
- 2.Qh7#
- 1...Bf7
- 2.Sxf7#
- 1...Bh7
- 2.Sf7#
- 2.Qxh7#
- 1...Sf2
- 2.Qf6#
- 1...Sh2
- 2.Qf6#
- 1...Se3
- 2.Qf6#
- 1...Se5
- 2.Qf6#
- 1...Sh6
- 2.Qf6#
- 1...Sf6+
- 1.Kh5!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);N_GUARD::QAR1(D)
- S(a);N_GUARD::QAB(D)
- S(a);N_GUARD::QAB(D),XS(a)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- B(b);N_GUARD::QAR1(D)
- S(a);N_GUARD::QAB(D)
- S(a);N_GUARD::QAB(D),XS(a)
- Refutation
- S(a);CHECK
- Try
- K(B);P-FLIGHT,XS(a)
- Threat
- QAB(D)
- Vars
- B(b);N_GUARD::QAR1(D)
- Refutation
- B(b);CHECK
- Try
- Q(D);
- Vars
- B(b);N_GUARD::QAR1(D)
- B(b);N_GUARD::QAR1(D),XB(b)
- S(a);N_GUARD::QAB(D),XS(a)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(D);
- Vars
- B(b);N_GUARD::QAR1(D),XB(b)
- S(a);N_GUARD::QAB(D)
- S(a);N_GUARD::QAB(D),XS(a)
- Refutation
- B(b);XQ(D)
- Try
- Q(D);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAR1(D),XB(b)
- Refutation
- S(a);XQ(D)
- Try
- Actual
- K(B);P-FLIGHT
- Vars
- S(a);CHECK,N_GUARD::QAB(D),XS(a)
- B(b);N_GUARD::QAR1(D)
- B(b);N_GUARD,P_PINQ(D)::S(C),XB(b)
- S(a);N_GUARD::QAB(D)
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).