MESON Chess Problem Database
Problem Display
PID: 156926 (3R4/n1qB1K2/8/p1R2p2/8/nN1kP1N1/1P3B1Q/4r3 w - - 0 1)
Agarkov, Anatoly Yakovlevich
Hlas l'udu, 1984
#2
10 + 7
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Qf4
- 2.Bb5#
- 2.Bxf5#
- 2.Rc3#
- 1...Qe5
- 2.Bb5#
- 2.Bxf5#
- 1...Qb6
- 2.Bb5#
- 2.Bxf5#
- 2.Rc3#
- 1...Qd6
- 2.Bxf5#
- 2.Rc3#
- 1...Qb8
- 2.Bb5#
- 2.Bxf5#
- 2.Rc3#
- 1...Qxd8
- 2.Bxf5#
- 2.Rc3#
- 1...Qc6
- 2.Bxf5#
- 2.Bxc6#
- 1...Qb7
- 2.Rc3#
- 1...Qxd7+
- 2.Rxd7#
- 1...Qc8
- 2.Bb5#
- 2.Bxf5#
- 2.Bxc8#
- 1...Sc6
- 2.Rc3#
- 1...f4
- 2.Qh7#
- 1...Qf4
- Tries
- 1.Rxc7?
- threat
- 2.Ba4#
- 2.Bb5#
- 2.Bxf5#
- 2.Be6#
- 2.Bc8#
- 2.Be8#
- 2.Rc3#
- 1...Sc4
- 2.Bxf5#
- 1...Rc1
- 2.Ba4#
- 2.Bb5#
- 2.Bxf5#
- 2.Be6#
- 2.Bc8#
- 2.Be8#
- 1...Sb1
- 2.Ba4#
- 2.Bb5#
- 2.Bxf5#
- 2.Be6#
- 2.Bc8#
- 2.Be8#
- 1...Sc2
- 2.Bb5#
- 2.Bxf5#
- 2.Rc3#
- 1...S3b5
- 2.Bxb5#
- 2.Bxf5#
- 1...S7b5
- 2.Bxb5#
- 2.Bxf5#
- 1...Sc8
- 2.Bb5#
- 2.Bxf5#
- 2.Bxc8#
- 2.Rc3#
- 1...a4
- 2.Bxa4#
- 2.Bb5#
- 2.Bxf5#
- 2.Be6#
- 2.Bc8#
- 2.Be8#
- 2.Rc3#
- 1...f4
- 2.Bh3#
- 2.Ba4#
- 2.Bg4#
- 2.Bb5#
- 2.Bf5#
- 2.Be6#
- 2.Bc8#
- 2.Be8#
- 2.Rc3#
- 2.Qh7#
- 1...Sc6!
- threat
- 1.Qh4?
- threat
- 2.Qd4#
- 1...Qxd7+
- 2.Rxd7#
- 1...Qxg3
- 2.Bb5#
- 1...Qxc5
- 2.Bxf5#
- 1...Sc4
- 2.Qxc4#
- 1...Qf4
- 2.Bb5#
- 2.Bxf5#
- 2.Rc3#
- 1...Qe5
- 2.Bb5#
- 2.Bxf5#
- 1...Qd6
- 2.Bxf5#
- 2.Rc3#
- 1...Sc2
- 2.Qc4#
- 1...S3b5
- 2.Qc4#
- 1...Sc6
- 2.Rc3#
- 1...f4
- 2.Qh7#
- 1...S7b5!
- threat
- 1.Qh5?
- threat
- 2.Qxf5#
- 1...Qxd7+
- 2.Rxd7#
- 1...Qxg3
- 2.Bxf5#
- 1...Rxe3
- 2.Qd1#
- 1...Qf4
- 2.Bb5#
- 2.Bxf5#
- 2.Rc3#
- 1...Qe5
- 2.Bb5#
- 2.Bxf5#
- 1...Qc6
- 2.Bxf5#
- 2.Bxc6#
- 1...Qb7
- 2.Rc3#
- 1...f4
- 2.Qg6#
- 2.Qd5#
- 2.Qf5#
- 2.Qh7#
- 1...Qxc5!
- threat
- 1.Rxc7?
- Keys
- 1.Bg1!
- threat
- 2.Qd2#
- 1...Qxd7+
- 2.Rxd7#
- 1...Qxg3
- 2.Bxf5#
- 1...Qxc5
- 2.Bb5#
- 1...Rd1
- 2.Qe2#
- 1...Re2
- 2.Qxe2#
- 1...Sb1
- 2.Qc2#
- 1...Sc4
- 2.Rd5#
- threat
- 1.Bg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- Q(g);N_GUARD::R1(G)
- Q(g);CHECK,OGATE,P_SPINQ(g),XB(H)::R(J),XQ(g)
- S(f);S_CUTQ(g)::R1(G)
- P(e);OGATEB::QAB(C)
- Tries
- Try
- R(G);N_SPINB(H),XQ(g)
- Threat
- DUALS(7)
- Vars
- S(b);::R(J)+B(H),DCHECK,XP(e)
- Refutation
- S(f);
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- Q(g);CHECK,OGATE,P_SPINQ(g),XB(H)::R(J),XQ(g)
- Q(g);N_PINB(H),XS(F)::R(J)+B(H),DCHECK
- Q(g);N_PINB(H),XR(G)::R(J)+B(H),DCHECK,XP(e)
- S(b);N_GUARD::QAB1(C),XS(b)
- S(b);N_GUARD::QAB1(C)
- S(f);S_CUTQ(g)::R1(G)
- P(e);OGATEB::QAB(C)
- Refutation
- S(f);
- Try
- Q(C);
- Threat
- QAB(C),XP(e)
- Vars
- Q(g);CHECK,OGATE,P_SPINQ(g),XB(H)::R(J),XQ(g)
- Q(g);N_PINB(H),XS(F)::R(J)+B(H),DCHECK,XP(e)
- R(a);N_GUARD,XP(E)::QAR2(C)
- Q(g);N_GUARD::R1(G)
- Refutation
- Q(g);N_PINB(H),XR(G)
- Try
- Actual
- B(B);
- Threat
- QAR1(C)
- Vars
- Q(g);CHECK,OGATE,P_SPINQ(g),XB(H)::R(J),XQ(g)
- Q(g);N_PINB(H),XS(F)::R(J)+B(H),DCHECK,XP(e)
- Q(g);N_PINB(H),XR(G)::R(J)+B(H),DCHECK
- R(a);N_GUARD::QAB1(C)
- R(a);N_GUARD::QAB1(C),XR(a)
- S(b);N_GUARD::QAB1(C)
- S(b);SBLOCK::R(G)
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).