MESON Chess Problem Database
Problem Display
PID: 90166 (8/8/1nB4b/Bn2pr1b/R3R2r/3k3N/4pPP1/1K2Q1N1 w - - 0 1)
Velikoslavsky, Vladimir V
Die Schwalbe, 1969
#2
10 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxe4
- 2.Bxe4#
- 1...Rhf4
- 2.Re3#
- 2.Qd2#
- 1...Rg4
- 2.Qxe2#
- 1...Rxf2
- 2.Sxf2#
- 1...Rf3
- 2.Qxe2#
- 1...Rff4
- 2.Re3#
- 2.Qd2#
- 1...Rg5
- 2.Re3#
- 2.Qd2#
- 1...Bg6
- 2.Qxe2#
- 1...Bf7
- 2.Qxe2#
- 1...Be8
- 2.Qxe2#
- 1...Bd2
- 2.Qxd2#
- 1...Be3
- 2.Rxe3#
- 1...Bg7
- 2.Re3#
- 2.Qd2#
- 1...Bf8
- 2.Re3#
- 2.Qd2#
- 1...Sa3+
- 2.Rxa3#
- 1...Sc3+
- 2.Qxc3#
- 1...Sd4
- 2.Qc3#
- 1...Sd6
- 2.Ra3#
- 2.Qc3#
- 1...Sa7
- 2.Ra3#
- 2.Qc3#
- 1...Sc7
- 2.Ra3#
- 2.Qc3#
- 1...Sd5
- 2.Bxb5#
- 1...Sd7
- 2.Bxb5#
- 1...Sa8
- 2.Bxb5#
- 1...Sc8
- 2.Bxb5#
- 1...Rxe4
- Tries
- 1.Ka1?
- threat
- 2.Qb1#
- 1...Kc2
- 2.Qb1#
- 1...Sa3
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd4
- 2.Qc3#
- 1...Bc1!
- threat
- 1.Sf3?
- threat
- 2.Qxe2#
- 1...Sa3+
- 2.Rxa3#
- 1...Sc3+
- 2.Qxc3#
- 1...Rxe4
- 2.Bxe4#
- 1...Be3
- 2.Rxe3#
- 1...Sd4
- 2.Qc3#
- 1...Bxf3!
- threat
- 1.Sf4+?
- 1...Rhxf4
- 2.Re3#
- 2.Qd2#
- 1...Rfxf4
- 2.Re3#
- 2.Qd2#
- 1...exf4
- 2.Qd2#
- 1...Bxf4!
- 1...Rhxf4
- 1.Ra3+?
- 1...Sc3+
- 2.Rxc3#
- 2.Qxc3#
- 1...Sxa3+!
- 1...Sc3+
- 1.Rad4+?
- 1...Sxd4
- 2.Qc3#
- 1...exd4!
- 1...Sxd4
- 1.Rf4?
- threat
- 2.Be4#
- 2.Qd2#
- 1...Sa3+
- 2.Rxa3#
- 1...Sc3+
- 2.Qxc3#
- 1...Rhxf4
- 2.Qd2#
- 1...Rfxf4
- 2.Qd2#
- 1...Bxf4
- 2.Be4#
- 1...Sxa4
- 2.Bxb5#
- 2.Qd2#
- 1...Bf3
- 2.Qd2#
- 1...Sd6
- 2.Ra3#
- 2.Qd2#
- 2.Qc3#
- 1...Sd5
- 2.Bxb5#
- 2.Qd2#
- 1...e4
- 2.Bxe4#
- 2.Qd2#
- 1...Sc4!
- threat
- 1.Rg4?
- threat
- 2.Be4#
- 2.Qxe2#
- 1...Sa3+
- 2.Rxa3#
- 1...Sc3+
- 2.Qxc3#
- 1...Rxg4
- 2.Qxe2#
- 1...Bxg4
- 2.Be4#
- 1...Sxa4
- 2.Bxb5#
- 2.Qxe2#
- 1...Sc4
- 2.Qxe2#
- 1...Rf4
- 2.Qd2#
- 2.Qxe2#
- 1...Sd4
- 2.Be4#
- 2.Qc3#
- 1...Sd6
- 2.Ra3#
- 2.Qc3#
- 2.Qxe2#
- 1...Sd5
- 2.Bxb5#
- 2.Qxe2#
- 1...e4
- 2.Bxe4#
- 2.Qxe2#
- 1...Rxf2!
- threat
- 1.f3?
- threat
- 2.Sf2#
- 2.Qxe2#
- 1...Sa3+
- 2.Rxa3#
- 1...Sc3+
- 2.Qxc3#
- 1...Rxh3
- 2.Qxe2#
- 1...Rxf3
- 2.Qxe2#
- 1...Bxf3
- 2.Sf2#
- 1...Be3
- 2.Qxe2#
- 1...Sd4
- 2.Sf2#
- 2.Qc3#
- 1...Rxe4!
- threat
- 1.g4?
- threat
- 2.Qxe2#
- 1...Sa3+
- 2.Rxa3#
- 1...Sc3+
- 2.Qxc3#
- 1...Rxf2
- 2.Sxf2#
- 1...Sd4
- 2.Qc3#
- 1...Bxg4!
- threat
- 1.Ka1?
- Keys
- 1.f4!
- threat
- 2.Sf2#
- 2.Qd2#
- 1...Sa3+
- 2.Rxa3#
- 1...Sc3+
- 2.Qxc3#
- 1...Rxh3
- 2.Qd2#
- 1...Rhxf4
- 2.Qd2#
- 1...Rfxf4
- 2.Qd2#
- 1...Bxf4
- 2.Sf2#
- 1...Sc4
- 2.Sf2#
- threat
- 1.f4!
This is a version of 141609
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 14
- Sets
- R(c);OGATE,XR(H)::B(J),XR(c)
- R(c);S_CUTB(g)::QAB1(B),XP(a)
- R(f);XP(D)::S(F),XR(f)
- R(f);S_CUTB(g)::QAB1(B),XP(a)
- B(g);N_GUARD::QAB1(B),XP(a)
- B(i);N_GUARD::QAR1(B),XB(i)
- B(i);N_GUARD::R1(H),XB(i)
- S(d);CHECK,N_GUARD::R(G),XS(d)
- S(d);CHECK,N_GUARD::QAR1(B),XS(d)
- S(d);N_GUARD::QAR1(B)
- S(h);N_GUARD::B(J),XS(d)
- Tries
- Try
- K(A);P-FLIGHT
- Threat
- QAB(B)
- Vars
- K(b);S_FLIGHT::QAB1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- Refutation
- B(i);
- Try
- S(C);
- Threat
- QAB1(B),XP(a)
- Vars
- S(d);CHECK,N_GUARD::R(G),XS(d)
- S(d);CHECK,N_GUARD::QAR1(B),XS(d)
- R(c);OGATE,XR(H)::B(J),XR(c)
- B(i);N_GUARD::R1(H),XB(i)
- S(d);N_GUARD::QAR1(B)
- Refutation
- B(g);XS(C)
- Try
- S(F);CHECK
- Vars
- P(e);XS(F)::QAR1(B)
- Refutation
- B(i);XS(F)
- Try
- R(G);CHECK
- Refutation
- S(d);CHECK,XR(G)
- Try
- R(G);CHECK
- Vars
- S(d);XR(G)::QAR1(B)
- Refutation
- P(e);XR(G)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::R(G),XS(d)
- S(d);CHECK,N_GUARD::QAR1(B),XS(d)
- R(c);XR(H)::QAR1(B)
- R(f);XR(H)::QAR1(B)
- B(i);XR(H)::B(J)
- B(g);::QAR1(B)
- Refutation
- S(h);
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::R(G),XS(d)
- S(d);CHECK,N_GUARD::QAR1(B),XS(d)
- R(c);XR(H)::QAB1(B),XP(a)
- B(g);XR(H)::B(J)
- S(h);::QAB1(B),XP(a)
- Refutation
- R(f);XP(D)
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::R(G),XS(d)
- S(d);CHECK,N_GUARD::QAR1(B),XS(d)
- R(c);XS(F)::QAB1(B),XP(a)
- R(f);XP(D)::QAB1(B),XP(a)
- B(g);XP(D)::S(F)
- B(i);::QAB1(B),XP(a)
- Refutation
- R(c);XR(H)
- Try
- P(E);
- Threat
- QAB1(B),XP(a)
- Vars
- S(d);CHECK,N_GUARD::R(G),XS(d)
- S(d);CHECK,N_GUARD::QAR1(B),XS(d)
- R(f);XP(D)::S(F),XR(f)
- S(d);N_GUARD::QAR1(B)
- Refutation
- B(g);XP(E)
- Try
- Actual
- P(D);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::R(G),XS(d)
- S(d);CHECK,N_GUARD::QAR1(B),XS(d)
- R(c);XS(F)::QAR1(B)
- R(c);XP(D)::QAR1(B)
- R(f);XP(D)::QAR1(B)
- B(i);XP(D)::S(F)
- S(h);::S(F)
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).