MESON Chess Problem Database
Problem Display
PID: 247530 (8/1n2N1P1/p1Bb4/BN2P3/2kP1Q2/1R4rr/K3P1b1/6nq w - - 0 1)
Shanshin, Valery Yurevich
Zadachi i Etyudi, 2003
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Rf3
- 2.Bd5#
- 2.g8Q#
- 2.g8B#
- 1...Bf3
- 2.Rc3#
- 2.Qc1#
- 1...Ba3
- 2.Sxa3#
- 1...Bb4
- 2.Rxb4#
- 1...Bxe5
- 2.Sa3#
- 2.Rb4#
- 1...Bc7
- 2.Sa3#
- 2.Rb4#
- 1...Bb8
- 2.Sa3#
- 2.Rb4#
- 1...Sf3
- 2.Bd5#
- 2.Rc3#
- 2.Qf7#
- 1...Sxa5
- 2.Sxd6#
- 1...Sc5
- 2.Sa3#
- 2.Sxd6#
- 2.Rb4#
- 1...Sd8
- 2.Sxd6#
- 1...axb5
- 2.Bxb5#
- 1...Rf3
- Tries
- 1.Sc8?
- threat
- 2.Sb6#
- 1...Bc7
- 2.Sa3#
- 2.Rb4#
- 1...Bc5!
- threat
- 1.Rf3?
- threat
- 2.Qc1#
- 2.Qf7#
- 1...Rxf3
- 2.g8Q#
- 2.g8B#
- 1...Rxg7
- 2.Qc1#
- 1...Bxf3
- 2.Qc1#
- 1...Sxe2
- 2.Qf7#
- 1...Sxf3
- 2.Qf7#
- 1...axb5
- 2.Bd5#
- 1...Rg6
- 2.Qc1#
- 1...Rh6
- 2.Qc1#
- 1...Ba3
- 2.Sxa3#
- 2.Qf7#
- 1...Bb4
- 2.Qf7#
- 1...Sc5
- 2.Sa3#
- 2.Sxd6#
- 2.Qc1#
- 1...Sd8
- 2.Sxd6#
- 2.Qc1#
- 1...Sxa5!
- threat
- 1.Qf3?
- threat
- 2.Bd5#
- 2.Rc3#
- 1...Rxf3
- 2.Bd5#
- 1...Bxf3
- 2.Rc3#
- 1...Sxe2
- 2.Bd5#
- 1...Sxa5
- 2.Bd5#
- 1...Bb4
- 2.Rxb4#
- 1...axb5!
- threat
- 1.Qe4?
- threat
- 2.Bd5#
- 1...Rxb3
- 2.g8Q#
- 2.g8B#
- 1...Bb4
- 2.Rxb4#
- 1...Bxe4!
- threat
- 1.d5+?
- 1...Kc5
- 2.Qb4#
- 2.Qd4#
- 1...Be4!
- 1...Kc5
- 1.exd6?
- threat
- 2.Sa3#
- 2.Rb4#
- 1...Sxe2
- 2.Sa3#
- 1...Sxa5
- 2.Sa3#
- 1...axb5
- 2.Bxb5#
- 1...Be4
- 2.Rb4#
- 1...Rxb3!
- threat
- 1.Sc8?
- Keys
- 1.Bf3!
- threat
- 2.Qc1#
- 2.Qf7#
- 1...Rxf3
- 2.g8Q#
- 2.g8B#
- 1...Rxg7
- 2.Qc1#
- 1...Bxf3
- 2.Qc1#
- 1...Sxe2
- 2.Qf7#
- 1...Sxf3
- 2.Qf7#
- 1...axb5
- 2.Rc3#
- 1...Bb4
- 2.Rxb4#
- 1...Rg6
- 2.Qc1#
- 1...Rh6
- 2.Qc1#
- 1...Ba3
- 2.Sxa3#
- 2.Qf7#
- 1...Sc5
- 2.Sa3#
- 2.Sxd6#
- 2.Rb4#
- 2.Qc1#
- 1...Sd8
- 2.Sxd6#
- 2.Qc1#
- threat
- 1.Bf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- B(h);N_GUARD::S(G),XB(h)
- B(h);N_GUARD::R1(C),XB(h)
- S(i);N_GUARD,XB(F)::S(G),XB(h)
- S(i);N_GUARD::S(G),XB(h)
- P(g);OGATE,XS(G)::B(I),XP(g)
- Tries
- Try
- S(J);
- Threat
- S(J)
- Refutation
- B(h);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,XR(C)::P=Q
- R(d);XP(K)::QAR(E)
- B(c);XR(C)::QAR(E)
- S(a);XP(B)::QAB(E)
- S(a);XR(C)::QAB(E)
- P(g);SBLOCK,XS(G)::B(I)
- R(d);::QAR(E)
- R(e);::QAR(E)
- B(h);::QAB(E)
- Refutation
- S(i);XB(F)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(d);XQ(E)::B(I)
- B(c);XQ(E)::R1(C)
- S(a);XP(B)::B(I)
- S(i);XB(F)::B(I)
- B(h);N_GUARD::R1(C),XB(h)
- Refutation
- P(g);XS(G)
- Try
- Q(E);
- Threat
- B(I)
- Vars
- R(d);N_GUARD,XR(C)::P=Q
- B(h);N_GUARD::R1(C),XB(h)
- Refutation
- B(c);XQ(E)
- Try
- P(D);CHECK
- Refutation
- B(c);P_SPINB(c)
- Try
- P(H);XB(h)
- Threat
- DUALS(2)
- Vars
- S(a);XP(B)::S(G)
- S(i);XB(F)::S(G)
- P(g);OGATE,XS(G)::B(I),XP(g)
- B(c);::R1(C)
- Refutation
- R(d);XR(C)
- Try
- Actual
- B(I);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,XB(I)::P=Q
- R(d);XP(K)::QAR(E)
- B(c);XB(I)::QAR(E)
- S(a);XP(B)::QAB(E)
- S(a);XB(I)::QAB(E)
- P(g);SBLOCK,XS(G)::R1(C)
- B(h);N_GUARD::R1(C),XB(h)
- R(d);::QAR(E)
- R(e);::QAR(E)
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).