MESON Chess Problem Database
Problem Display
PID: 151796 (2Q1KB2/n2P3N/4k1N1/3R4/b3P3/8/1qp2R2/2br3B w - - 0 1)
Alekseev, Yuri Mikhailovich
Shakhmatnaya Poeziya, 2010
#2
10 + 7
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qa3
- 2.Rf6#
- 2.Re5#
- 1...Qe5
- 2.Rxe5#
- 1...Qf6
- 2.Rxf6#
- 1...Qb1
- 2.Rf6#
- 2.Re5#
- 1...Qa2
- 2.Rf6#
- 2.Re5#
- 1...Qb3
- 2.Rf6#
- 2.Re5#
- 1...Qb4
- 2.Rf6#
- 2.Re5#
- 1...Qb5
- 2.Rf6#
- 1...Qb6
- 2.Rf6#
- 2.Re5#
- 1...Qb7
- 2.Rf6#
- 2.Re5#
- 1...Qb8
- 2.Rf6#
- 1...Re1
- 2.Rd6#
- 1...Rf1
- 2.Rd6#
- 1...Rg1
- 2.Rd6#
- 1...Rxh1
- 2.Rd6#
- 1...Rd2
- 2.Sf4#
- 2.Sg5#
- 1...Rd4
- 2.Rf6#
- 2.Re5#
- 1...Rxd5
- 2.exd5#
- 1...Bd2
- 2.Rd6#
- 1...Bf4
- 2.Sxf4#
- 1...Bg5
- 2.Sxg5#
- 1...Bb3
- 2.d8S#
- 1...Bxd7+
- 2.Qxd7#
- 1...Sb5
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Sc6
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qa3
- Tries
- 1.Rfd2?
- threat
- 2.Sf4#
- 2.Rd6#
- 1...Bxd7+
- 2.Qxd7#
- 1...Rxd2
- 2.Sf4#
- 1...Bxd2
- 2.Rd6#
- 1...Sxc8
- 2.Sf4#
- 1...Qa3
- 2.Sf4#
- 2.Re5#
- 1...Qd4
- 2.Sf4#
- 1...Qe5
- 2.Rxe5#
- 1...Qf6
- 2.Rd6#
- 1...Qb4
- 2.Sf4#
- 2.Re5#
- 1...Qb6
- 2.Sf4#
- 2.Re5#
- 1...Rf1
- 2.Rd6#
- 1...Sb5
- 2.Sf4#
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qb8!
- threat
- 1.Rdd2?
- threat
- 2.Sg5#
- 2.Qc4#
- 1...Bxd7+
- 2.Qxd7#
- 1...Rxd2
- 2.Sg5#
- 1...Bxd2
- 2.Qc4#
- 1...Sxc8
- 2.Sg5#
- 1...Qc3
- 2.Sg5#
- 1...Qd4
- 2.Sg5#
- 1...Qf6
- 2.Rxf6#
- 2.Qc4#
- 1...Qa2
- 2.Sg5#
- 2.Rf6#
- 1...Qb3
- 2.Sg5#
- 2.Rf6#
- 1...Qb4
- 2.Sg5#
- 2.Rf6#
- 1...Qb5
- 2.Rf6#
- 1...Qb7
- 2.Sg5#
- 2.Rf6#
- 1...Qb8
- 2.Sg5#
- 2.Rf6#
- 1...Rg1
- 2.Rd6#
- 2.Qc4#
- 1...Bb3
- 2.Sg5#
- 2.d8S#
- 1...Bb5
- 2.Sg5#
- 1...Bc6
- 2.Sg5#
- 1...Sc6
- 2.Sg5#
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qe5!
- threat
- 1.Rd4?
- threat
- 2.Rf6#
- 2.Qc4#
- 1...Bxd7+
- 2.Qxd7#
- 1...Rxd4
- 2.Rf6#
- 1...Sxc8
- 2.Rf6#
- 1...Qc3
- 2.Rf6#
- 1...Qa2
- 2.Rf6#
- 1...Qb3
- 2.Rf6#
- 1...Qb4
- 2.Rf6#
- 1...Qb5
- 2.Rf6#
- 1...Qb7
- 2.Rf6#
- 1...Qb8
- 2.Rf6#
- 1...Rf1
- 2.Rd6#
- 2.Qc4#
- 1...Bf4
- 2.Qc4#
- 1...Bg5
- 2.Sxg5#
- 2.Qc4#
- 1...Bb3
- 2.Rf6#
- 2.d8S#
- 1...Bb5
- 2.Rf6#
- 1...Bc6
- 2.Rf6#
- 1...Sc6
- 2.Rf6#
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qxd4!
- threat
- 1.Qa6+?
- 1...Qb6
- 2.Rf6#
- 2.Re5#
- 1...Sc6
- 2.d8S#
- 1...Bc6!
- 1...Qb6
- 1.e5?
- threat
- 2.Rf6#
- 1...Bxd7+
- 2.Qxd7#
- 1...Qxe5
- 2.Rxe5#
- 1...Rxh1
- 2.Rd6#
- 1...Rf1
- 2.Rd6#
- 1...Bg5
- 2.Sxg5#
- 1...Bf4!
- threat
- 1.Rfd2?
- Keys
- 1.Rf4!
- threat
- 2.Sg5#
- 1...Bxd7+
- 2.Qxd7#
- 1...Rxd5
- 2.exd5#
- 1...Bxf4
- 2.Sxf4#
- 1...Qe5
- 2.Rxe5#
- 1...Qf6
- 2.Rxf6#
- 1...Rg1
- 2.Rd6#
- threat
- 1.Rf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- Q(c);N_GUARD::R1(D),XQ(c)
- Q(c);N_GUARD::R1(B),XQ(c)
- Q(c);N_GUARD::R1(B)
- Q(c);N_GUARD,P_PINQ(H)::R1(B)
- R(b);N_GUARD::R1(D)
- R(b);N_GUARD,XB(A)::R1(D)
- R(b);OGATE,XR(D)::P(C),XR(b)
- B(a);S_CUTR(b)::R1(D)
- B(a);N_GUARD::S(E),XB(a)
- B(a);N_GUARD::S(G),XB(a)
- B(e);N_PINP(F)::P=S
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB1(H),XB(e)
- Tries
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB1(H),XB(e)
- R(b);XR(B)::S(E)
- B(a);XR(B)::R1(D)
- S(g);XQ(H)::S(E)
- Q(c);::S(E)
- Q(c);N_GUARD::R1(D),XQ(c)
- Q(c);::R1(D)
- R(b);::R1(D)
- Refutation
- Q(c);P_PINQ(H)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB1(H),XB(e)
- R(b);XR(D)::S(G)
- B(a);XR(D)::QAB(H)
- S(g);XQ(H)::S(G)
- Q(c);::S(G)
- Q(c);N_GUARD::R1(B)
- B(e);::S(G)
- Refutation
- Q(c);
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB1(H),XB(e)
- R(b);XR(D)::R1(B)
- S(g);XQ(H)::R1(B)
- Q(c);::R1(B)
- Q(c);P_PINQ(H)::R1(B)
- B(a);::QAB(H)
- B(e);::R1(B)
- Refutation
- Q(c);XR(D)
- Try
- Q(H);CHECK
- Vars
- S(g);N_PINP(F),P_SPINS(g)::P=S
- Refutation
- B(e);P_SPINB(e)
- Try
- P(C);
- Threat
- R1(B)
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB1(H),XB(e)
- Q(c);OGATE,XP(C)::R1(D),XQ(c)
- R(b);N_GUARD,XB(A)::R1(D)
- R(b);N_GUARD::R1(D)
- B(a);N_GUARD::S(G),XB(a)
- Refutation
- B(a);
- Try
- Actual
- R(B);
- Threat
- S(G)
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB1(H),XB(e)
- R(b);OGATE,XR(D)::P(C),XR(b)
- B(a);XR(B)::S(E),XB(a)
- Q(c);N_GUARD::R1(D),XQ(c)
- Q(c);N_GUARD::R1(B),XQ(c)
- R(b);N_GUARD::R1(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).