MESON Chess Problem Database
Problem Display
PID: 243849 (Q7/K4N2/1B2P3/1P2Rp2/5kp1/2pb4/3bP2P/3n4 w - - 0 1)
Chepizhni, Viktor Ivanovich
64 Shakhmatnoe obozrenie, 2017
#2
9 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...g3
- 2.Qf3#
- 1...g3
- Tries
- 1.Bd8?
- threat
- 2.Bg5#
- 1...g3
- 2.Qf3#
- 1...Be3+!
- threat
- 1.Re3?
- threat
- 2.Qb8#
- 1...Sxe3
- 2.Bc7#
- 1...g3
- 2.Qf3#
- 1...Bxe3!
- threat
- 1.Re4+?
- 1...Bxe4
- 2.Qb8#
- 1...fxe4!
- 1...Bxe4
- 1.Qg2?
- threat
- 2.Qg3#
- 1...g3
- 2.Qf3#
- 2.Qxg3#
- 1...Be1!
- threat
- 1.Qb8?
- threat
- 2.Re3#
- 1...Be3
- 2.Rxe3#
- 1...Be4
- 2.Rd5#
- 1...Se3
- 2.Rxe3#
- 1...g3!
- threat
- 1.Qh8?
- threat
- 2.Qh6#
- 1...g3
- 2.Qh4#
- 1...Bxe2!
- threat
- 1.Bd8?
- Keys
- 1.Bc7!
- threat
- 2.Re4#
- 1...Be3+
- 2.Rc5#
- 1...Bxe2
- 2.Rxe2#
- 1...Be4
- 2.Rxe4#
- threat
- 1.Bc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- P(f);N_GUARD::QAR1(I)
- Tries
- Try
- B(E);
- Threat
- B(E)
- Vars
- P(f);N_GUARD::QAR1(I)
- Refutation
- B(b);CHECK
- Try
- R(D);
- Threat
- QAB(I)
- Vars
- S(a);SBLOCK,XR(D)::B(E)
- P(f);N_GUARD::QAR1(I)
- Refutation
- B(b);P_PINB(E),XR(D)
- Try
- R(D);CHECK
- Vars
- B(d);SBLOCK,XR(D)::QAB(I)
- Refutation
- P(g);XR(D)
- Try
- Q(I);
- Threat
- QAB1(I)
- Refutation
- B(b);
- Try
- Q(I);
- Threat
- QAB(I)+R(D)
- Vars
- B(b);P_PINB(E)::QAB(I)+R(D),XB(b)
- B(d);SBLOCK::QAB(I)+R(D)
- S(a);::QAB(I)+R(D),XS(a)
- Refutation
- P(f);
- Try
- Q(I);
- Threat
- QAB(I)
- Vars
- P(f);OGATEB::QAR2(I)
- Refutation
- B(d);XP(A)
- Try
- Actual
- B(E);
- Threat
- B(E)+R(D),DCHECK
- Vars
- B(b);CHECK,SBLOCK::B(E)+R(D)
- B(d);OGATE,XP(A)::B(E)+R(D),XB(d)
- B(d);::B(E)+R(D),DCHECK,XB(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).