MESON Chess Problem Database
Problem Display
PID: 111176 (2R2B2/1R6/2brPK2/2Np4/2Bk1P2/3P4/1P3P2/n2Q4 w - - 0 1)
Shedey, Sergey Oleksandrovich
Povesnik, 1968
#2
12 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxe6+
- 2.Sxe6#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...Rxe6+
- Tries
- 1.Ba2?
- 1...Rxe6+
- 2.Sxe6#
- 1...Kxc5
- 2.d4#
- 1...Bxb7
- 2.Qa4#
- 1...Rd7
- 2.Rb4#
- 1...Rd8
- 2.Rb4#
- 1...Ba4
- 2.Rb4#
- 2.Qxa4#
- 1...Bd7
- 2.Rb4#
- 1...Be8
- 2.Rb4#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...Bb5!
- 1...Rxe6+
- 1.Ba6?
- 1...Rxe6+
- 2.Sxe6#
- 1...Kxc5
- 2.d4#
- 1...Bxb7
- 2.Qa4#
- 1...Rd7
- 2.Rb4#
- 1...Rd8
- 2.Rb4#
- 1...Ba4
- 2.Rb4#
- 2.Qxa4#
- 1...Bd7
- 2.Rb4#
- 1...Be8
- 2.Rb4#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...Bb5!
- 1...Rxe6+
- 1.Bxd6?
- 1...Bxb7
- 2.Be5#
- 1...Bb5
- 2.Be5#
- 1...Ba4
- 2.Be5#
- 1...Bd7
- 2.Be5#
- 1...Be8
- 2.Be5#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...dxc4!
- 1...Bxb7
- 1.Qc2?
- 1...Rxe6+
- 2.Sxe6#
- 1...Bxb7
- 2.Qc3#
- 1...Sxc2
- 2.Sb3#
- 1...dxc4
- 2.Qxc4#
- 1...Bb5
- 2.Qc3#
- 1...Rd7
- 2.Qc3#
- 1...Rd8
- 2.Qc3#
- 1...Ba4
- 2.Qc3#
- 1...Bd7
- 2.Qc3#
- 1...Be8
- 2.Qc3#
- 1...Sb3
- 2.Sxb3#
- 1...Kxc5!
- 1...Rxe6+
- 1.Qe2?
- threat
- 2.Qe3#
- 1...Rxe6+
- 2.Sxe6#
- 1...dxc4
- 2.Qe5#
- 1...Sc2
- 2.Sb3#
- 1...Kxc5!
- threat
- 1.Qb3?
- 1...Rxe6+
- 2.Sxe6#
- 1...Kxc5
- 2.Qb6#
- 1...Bxb7
- 2.Qc3#
- 1...Sxb3
- 2.Sxb3#
- 1...dxc4
- 2.Qxc4#
- 1...Bb5
- 2.Qc3#
- 1...Rd7
- 2.Qc3#
- 1...Rd8
- 2.Qc3#
- 1...Ba4
- 2.Qc3#
- 1...Bd7
- 2.Qc3#
- 1...Be8
- 2.Qc3#
- 1...Sc2!
- 1...Rxe6+
- 1.Qf3?
- threat
- 2.Qe3#
- 1...Rxe6+
- 2.Sxe6#
- 1...Kxc5
- 2.Qxd5#
- 1...Sc2
- 2.Sb3#
- 1...dxc4!
- threat
- 1.Qa4?
- 1...Rxe6+
- 2.Sxe6#
- 1...Kxc5
- 2.Qa7#
- 1...Bxb7
- 2.Ba2#
- 2.Bb3#
- 2.Bb5#
- 2.Ba6#
- 1...dxc4
- 2.Qxc4#
- 1...Bb5
- 2.Bxb5#
- 1...Rd7
- 2.Bb5#
- 1...Rd8
- 2.Bb5#
- 1...Bd7
- 2.Bb5#
- 1...Be8
- 2.Bb5#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...Bxa4!
- 1...Rxe6+
- 1.Qxa1?
- threat
- 2.Sb3#
- 2.b4#
- 1...Rxe6+
- 2.Sxe6#
- 1...Kxc5
- 2.Qa7#
- 2.b4#
- 1...Ba4
- 2.b3#
- 2.b4#
- 1...dxc4!
- threat
- 1.Qc1?
- threat
- 2.Qe3#
- 1...Rxe6+
- 2.Sxe6#
- 1...dxc4
- 2.Qxc4#
- 1...Sc2
- 2.Sb3#
- 1...Kxc5!
- threat
- 1.Qe1?
- threat
- 2.Qe3#
- 1...Rxe6+
- 2.Sxe6#
- 1...dxc4
- 2.Qe5#
- 1...Sc2
- 2.Sb3#
- 1...Kxc5!
- threat
- 1.Ba2?
- Keys
- 1.Qh5!
- 1...Rxe6+
- 2.Sxe6#
- 1...Kxc5
- 2.Qxd5#
- 1...Bxb7
- 2.Qe5#
- 1...dxc4
- 2.Qe5#
- 1...Bb5
- 2.Qe5#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Ba4
- 2.Qe5#
- 1...Bd7
- 2.Qe5#
- 1...Be8
- 2.Qe5#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...Rxe6+
- 1.Qh5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- R(e);CHECK,XP(H)::S(G),XR(e)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Tries
- Try
- B(E);
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- K(b);OGATE,P_SPINB(d),P_SPINR(e),S_FLIGHT,XS(G)::P(D)
- B(d);N_GUARD,XR(J)::QAR(A)
- R(e);N_PINP(H)::R(J)
- B(d);::R(J)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- B(d);
- Try
- B(E);
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- K(b);OGATE,P_SPINB(d),P_SPINR(e),S_FLIGHT,XS(G)::P(D)
- B(d);N_GUARD,XR(J)::QAR(A)
- R(e);N_PINP(H)::R(J)
- B(d);::R(J)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- B(d);
- Try
- B(L);N_SPINP(H),XR(e)
- Vars
- B(d);XR(J)::B(L)
- B(d);::B(L)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- P(c);XB(E)
- Try
- Q(A);
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- B(d);XR(J)::QAB1(A)
- S(a);N_GUARD,XQ(A)::S(G)
- P(c);OGATE,XB(E)::QAR1(A),XP(c)
- B(d);::QAB1(A)
- R(e);N_PINP(H)::QAB1(A)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- K(b);P_SPINB(d),P_SPINR(e),S_FLIGHT,XS(G)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- P(c);XB(E)::QAB1(A)
- S(a);N_GUARD::S(G)
- Refutation
- K(b);P_SPINB(d),P_SPINR(e),S_FLIGHT,XS(G)
- Try
- Q(A);
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- K(b);OGATEB,P_SPINB(d),P_SPINR(e),S_FLIGHT,XS(G)::QAB1(A)
- B(d);XR(J)::QAB1(A)
- S(a);XQ(A)::S(G),XS(a)
- P(c);OGATE,XB(E)::QAR1(A),XP(c)
- B(d);::QAB1(A)
- R(e);N_PINP(H)::QAB1(A)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- K(b);P_SPINB(d),P_SPINR(e),S_FLIGHT,XS(G)::QAR1(A),XP(c)
- S(a);N_GUARD::S(G)
- Refutation
- P(c);XB(E)
- Try
- Q(A);
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- K(b);OGATEB,P_SPINB(d),P_SPINR(e),S_FLIGHT,XS(G)::QAB(A)
- P(c);OGATE,P_SPINP(c),XB(E)::QAR1(A),XP(c)
- B(d);::QAR(A)+B(E),XB(d)
- R(e);N_PINP(H)::QAR(A)+B(E)
- B(d);::QAR(A)+B(E)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- B(d);XQ(A)
- Try
- Q(A);XS(a)
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- Refutation
- P(c);XB(E)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- P(c);OGATE,XB(E)::QAR1(A),XP(c)
- S(a);N_GUARD::S(G)
- Refutation
- K(b);P_SPINB(d),P_SPINR(e),S_FLIGHT,XS(G)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- P(c);XB(E)::QAB1(A)
- S(a);N_GUARD::S(G)
- Refutation
- K(b);P_SPINB(d),P_SPINR(e),S_FLIGHT,XS(G)
- Try
- Actual
- Q(A);
- Vars
- R(e);CHECK,XP(H)::S(G),XR(e)
- K(b);P_SPINB(d),P_SPINP(c),P_SPINR(e),S_FLIGHT,XS(G)::QAR1(A),XP(c)
- B(d);XR(J)::QAB1(A)
- P(c);XB(E)::QAB1(A)
- B(d);::QAB1(A)
- R(e);N_PINP(H)::QAB1(A)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
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).