MESON Chess Problem Database
Problem Display
PID: 215685 (6B1/3pn3/2pNn3/2P1k3/5RQ1/8/7P/K7 w - - 0 1)
Chocolous, Jiri
Deutsche Schachzeitung, 1881
#2
7 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sd4
- 2.Sc4#
- 1...Sxf4
- 2.Qg7#
- 1...Sxc5
- 2.Sc4#
- 1...Sg5
- 2.Sc4#
- 1...Sc7
- 2.Sc4#
- 1...Sg7
- 2.Sc4#
- 1...Sd8
- 2.Sc4#
- 1...Sf8
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 2.Sf7#
- 2.Rf5#
- 2.Qf5#
- 1...Sf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Sg6
- 2.Rf5#
- 2.Qf5#
- 1...Sc8
- 2.Rf5#
- 2.Qf5#
- 1...Sxg8
- 2.Rf5#
- 2.Qf5#
- 1...Sd4
- Tries
- 1.Kb1?
- 1...Sxf4
- 2.Qg7#
- 1...Sxc5
- 2.Sc4#
- 1...Sxg8
- 2.Rf5#
- 2.Qf5#
- 1...Sf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Sd4
- 2.Sc4#
- 1...Sg5
- 2.Sc4#
- 1...Sc7
- 2.Sc4#
- 1...Sg7
- 2.Sc4#
- 1...Sd8
- 2.Sc4#
- 1...Sf8
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 2.Sf7#
- 2.Rf5#
- 2.Qf5#
- 1...Sg6
- 2.Rf5#
- 2.Qf5#
- 1...Sc8
- 2.Rf5#
- 2.Qf5#
- 1...Kd5!
- 1...Sxf4
- 1.Ka2?
- 1...Sxf4
- 2.Qg7#
- 1...Sxc5
- 2.Sc4#
- 1...Sxg8
- 2.Rf5#
- 2.Qf5#
- 1...Sf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Sd4
- 2.Sc4#
- 1...Sg5
- 2.Sc4#
- 1...Sc7
- 2.Sc4#
- 1...Sg7
- 2.Sc4#
- 1...Sd8
- 2.Sc4#
- 1...Sf8
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 2.Sf7#
- 2.Rf5#
- 2.Qf5#
- 1...Sg6
- 2.Rf5#
- 2.Qf5#
- 1...Sc8
- 2.Rf5#
- 2.Qf5#
- 1...Kd5!
- 1...Sxf4
- 1.Kb2?
- 1...Sxf4
- 2.Qg7#
- 1...Sxc5
- 2.Sc4#
- 1...Sxg8
- 2.Rf5#
- 2.Qf5#
- 1...Sf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Sd4
- 2.Sc4#
- 1...Sg5
- 2.Sc4#
- 1...Sc7
- 2.Sc4#
- 1...Sg7
- 2.Sc4#
- 1...Sd8
- 2.Sc4#
- 1...Sf8
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 2.Sf7#
- 2.Rf5#
- 2.Qf5#
- 1...Sg6
- 2.Rf5#
- 2.Qf5#
- 1...Sc8
- 2.Rf5#
- 2.Qf5#
- 1...Kd5!
- 1...Sxf4
- 1.Bxe6?
- threat
- 2.Sc4#
- 2.Sf7#
- 1...Sf5
- 2.Qxf5#
- 1...dxe6!
- threat
- 1.Bf7?
- 1...Sxf4
- 2.Qg7#
- 1...Sxc5
- 2.Sc4#
- 1...Sf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Sd4
- 2.Sc4#
- 1...Sg5
- 2.Sc4#
- 1...Sc7
- 2.Sc4#
- 1...Sg7
- 2.Sc4#
- 1...Sd8
- 2.Sc4#
- 1...Sf8
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 2.Rf5#
- 2.Qf5#
- 1...Sg6
- 2.Rf5#
- 2.Qf5#
- 1...Sc8
- 2.Rf5#
- 2.Qf5#
- 1...Sg8
- 2.Rf5#
- 2.Qf5#
- 1...Kd5!
- 1...Sxf4
- 1.Rf1?
- threat
- 2.Qe4#
- 1...Sxc5
- 2.Sc4#
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 2.Qg7#
- 1...Sf5
- 2.Rxf5#
- 1...Sg5
- 2.Sc4#
- 2.Qf4#
- 1...Kd5!
- threat
- 1.Rf2?
- threat
- 2.Qe4#
- 1...Sxc5
- 2.Sc4#
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 2.Qg7#
- 1...Sf5
- 2.Rxf5#
- 1...Sg5
- 2.Sc4#
- 2.Qf4#
- 1...Kd5!
- threat
- 1.Rf3?
- threat
- 2.Qe4#
- 1...Sxc5
- 2.Sc4#
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 2.Qg7#
- 1...Sf5
- 2.Rxf5#
- 1...Sg5
- 2.Sc4#
- 2.Qf4#
- 1...Kd5!
- threat
- 1.Ra4?
- 1...Kd5
- 2.Qd4#
- 1...Sxc5
- 2.Qd4#
- 2.Qf4#
- 1...Sxg8
- 2.Qf5#
- 1...Sd4
- 2.Qxd4#
- 1...Sf4
- 2.Qxf4#
- 2.Qg7#
- 1...Sg5
- 2.Qd4#
- 2.Qf4#
- 1...Sc7
- 2.Qd4#
- 2.Qf4#
- 2.Qg7#
- 1...Sg7
- 2.Qd4#
- 2.Qf4#
- 2.Qxg7#
- 1...Sd8
- 2.Qd4#
- 2.Qf4#
- 2.Qg7#
- 1...Sf8
- 2.Qd4#
- 2.Qf4#
- 2.Qg7#
- 1...Sd5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sg6
- 2.Qf5#
- 1...Sc8
- 2.Qf5#
- 1...Kf6!
- 1...Kd5
- 1.Rb4?
- 1...Kd5
- 2.Qd4#
- 1...Sxc5
- 2.Qd4#
- 2.Qf4#
- 1...Sxg8
- 2.Qf5#
- 1...Sd4
- 2.Qxd4#
- 1...Sf4
- 2.Qxf4#
- 2.Qg7#
- 1...Sg5
- 2.Qd4#
- 2.Qf4#
- 1...Sc7
- 2.Qd4#
- 2.Qf4#
- 2.Qg7#
- 1...Sg7
- 2.Qd4#
- 2.Qf4#
- 2.Qxg7#
- 1...Sd8
- 2.Qd4#
- 2.Qf4#
- 2.Qg7#
- 1...Sf8
- 2.Qd4#
- 2.Qf4#
- 2.Qg7#
- 1...Sd5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sg6
- 2.Qf5#
- 1...Sc8
- 2.Qf5#
- 1...Kf6!
- 1...Kd5
- 1.Rc4?
- 1...Kd5
- 2.Qd4#
- 2.Qe4#
- 1...Sxc5
- 2.Qd4#
- 2.Qf4#
- 1...Sxg8
- 2.Qf5#
- 1...Sd4
- 2.Qxd4#
- 1...Sf4
- 2.Qxf4#
- 2.Qg7#
- 1...Sg5
- 2.Qd4#
- 2.Qf4#
- 1...Sc7
- 2.Qd4#
- 2.Qf4#
- 2.Qg7#
- 1...Sg7
- 2.Qd4#
- 2.Qf4#
- 2.Qxg7#
- 1...Sd8
- 2.Qd4#
- 2.Qf4#
- 2.Qg7#
- 1...Sf8
- 2.Qd4#
- 2.Qf4#
- 2.Qg7#
- 1...Sd5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sg6
- 2.Qf5#
- 1...Sc8
- 2.Qf5#
- 1...Kf6!
- 1...Kd5
- 1.Re4+?
- 1...Kf6
- 2.Se8#
- 1...Kd5!
- 1...Kf6
- 1.Qf3?
- threat
- 2.Sc4#
- 2.Sf7#
- 2.Qe4#
- 1...Sxf4
- 2.Qc3#
- 1...Sxc5
- 2.Sc4#
- 1...Sd4
- 2.Sc4#
- 2.Re4#
- 2.Qe4#
- 2.Qe3#
- 1...Sg5
- 2.Sc4#
- 1...Sc7
- 2.Sc4#
- 2.Re4#
- 2.Qe4#
- 2.Qe3#
- 1...Sg7
- 2.Sc4#
- 2.Re4#
- 2.Qe4#
- 2.Qe3#
- 1...Sd8
- 2.Sc4#
- 2.Re4#
- 2.Qe4#
- 2.Qe3#
- 1...Sf8
- 2.Sc4#
- 2.Re4#
- 2.Qe4#
- 2.Qe3#
- 1...Sf5!
- threat
- 1.Qh4?
- 1...Sxf4
- 2.Qh8#
- 1...Sxc5
- 2.Sc4#
- 2.Qf6#
- 1...Sxg8
- 2.Rf5#
- 1...Sd4
- 2.Sc4#
- 2.Re4#
- 2.Qf6#
- 1...Sg5
- 2.Sc4#
- 1...Sc7
- 2.Sc4#
- 2.Re4#
- 2.Qf6#
- 1...Sg7
- 2.Sc4#
- 2.Re4#
- 2.Qf6#
- 1...Sd8
- 2.Sc4#
- 2.Re4#
- 2.Qf6#
- 1...Sf8
- 2.Sc4#
- 2.Re4#
- 2.Qf6#
- 1...Sd5
- 2.Sc4#
- 2.Sf7#
- 2.Re4#
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sg6
- 2.Rf5#
- 1...Sc8
- 2.Rf5#
- 1...Kd5!
- 1...Sxf4
- 1.Qg5+?
- 1...Sf5
- 2.Qxf5#
- 1...Sxg5!
- 1...Sf5
- 1.Qg7+?
- 1...Kxf4
- 2.Qg3#
- 1...Kd5
- 2.Qd4#
- 1...Sxg7!
- 1...Kxf4
- 1.h3?
- 1...Sxf4
- 2.Qg7#
- 1...Sxc5
- 2.Sc4#
- 1...Sxg8
- 2.Rf5#
- 2.Qf5#
- 1...Sf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Sd4
- 2.Sc4#
- 1...Sg5
- 2.Sc4#
- 1...Sc7
- 2.Sc4#
- 1...Sg7
- 2.Sc4#
- 1...Sd8
- 2.Sc4#
- 1...Sf8
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 2.Sf7#
- 2.Rf5#
- 2.Qf5#
- 1...Sg6
- 2.Rf5#
- 2.Qf5#
- 1...Sc8
- 2.Rf5#
- 2.Qf5#
- 1...Kd5!
- 1...Sxf4
- 1.h4?
- 1...Sxf4
- 2.Qg7#
- 1...Sxc5
- 2.Sc4#
- 1...Sxg8
- 2.Rf5#
- 2.Qf5#
- 1...Sf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Sd4
- 2.Sc4#
- 1...Sg5
- 2.Sc4#
- 1...Sc7
- 2.Sc4#
- 1...Sg7
- 2.Sc4#
- 1...Sd8
- 2.Sc4#
- 1...Sf8
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 2.Sf7#
- 2.Rf5#
- 2.Qf5#
- 1...Sg6
- 2.Rf5#
- 2.Qf5#
- 1...Sc8
- 2.Rf5#
- 2.Qf5#
- 1...Kd5!
- 1...Sxf4
- 1.Kb1?
- Keys
- 1.Qg1!
- 1...Kxf4
- 2.Qg3#
- 1...Kd5
- 2.Qd4#
- 1...Sxf4
- 2.Qg7#
- 1...Sxc5
- 2.Qd4#
- 1...Sxg8
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sd4
- 2.Qe3#
- 2.Qxd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qe3#
- 2.Qd4#
- 1...Sg7
- 2.Qe3#
- 2.Qd4#
- 1...Sd8
- 2.Qe3#
- 2.Qd4#
- 1...Sf8
- 2.Qe3#
- 2.Qd4#
- 1...Sd5
- 2.Rf5#
- 1...Sg6
- 2.Rf5#
- 1...Sc8
- 2.Rf5#
- 1...Kxf4
- 1.Qg1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 7
- REMOVED MATES = 5
- Sets
- S(c);::S(F)
- S(c);N_GUARD,SBLOCK,XR(C)::QAB(D)
- S(c);XP(E)::S(F)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(c);N_GUARD,SBLOCK,XR(C)::QAB(D)
- S(c);XP(E)::S(F)
- S(c);::S(F)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- K(A);P-FLIGHT
- Vars
- S(c);N_GUARD,SBLOCK,XR(C)::QAB(D)
- S(c);XP(E)::S(F)
- S(c);::S(F)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- K(A);S_FLIGHT
- Vars
- S(c);N_GUARD,SBLOCK,XR(C)::QAB(D)
- S(c);XP(E)::S(F)
- S(c);::S(F)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- B(G);XS(c)
- Threat
- DUALS(2)
- Vars
- S(e);N_GUARD::QAR1(D),XS(e)
- Refutation
- P(d);XB(G)
- Try
- B(G);
- Vars
- S(c);N_GUARD,SBLOCK,XR(C)::QAB(D)
- S(c);XP(E)::S(F)
- S(c);::S(F)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- R(C);
- Threat
- QAR1(D)
- Vars
- S(e);N_GUARD::R1(C),XS(e)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- R(C);
- Threat
- QAR1(D)
- Vars
- S(e);N_GUARD::R1(C),XS(e)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- R(C);
- Threat
- QAR1(D)
- Vars
- S(e);N_GUARD::R1(C),XS(e)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- R(C);
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR1(D)
- S(e);N_GUARD,XB(G)::QAR1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(e);N_GUARD,SBLOCK::QAR1(D)
- S(e);N_GUARD::QAR1(D),XS(e)
- S(e);N_GUARD::QAR1(D)
- Refutation
- K(a);S_FLIGHT
- Try
- R(C);
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR1(D)
- S(e);N_GUARD,XB(G)::QAR1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(e);N_GUARD,SBLOCK::QAR1(D)
- S(e);N_GUARD::QAR1(D),XS(e)
- S(e);N_GUARD::QAR1(D)
- Refutation
- K(a);S_FLIGHT
- Try
- R(C);
- Vars
- S(e);N_GUARD,XB(G)::QAR1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(e);N_GUARD,SBLOCK::QAR1(D)
- S(e);N_GUARD::QAR1(D),XS(e)
- S(e);N_GUARD::QAR1(D)
- Refutation
- K(a);S_FLIGHT
- Try
- R(C);CHECK
- Vars
- K(a);S_FLIGHT::S(F)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- S(c);N_GUARD,SBLOCK,XR(C)::QAB(D)
- S(c);XP(E)::S(F)
- S(c);::S(F)
- Refutation
- S(e);
- Try
- Q(D);
- Vars
- S(c);N_GUARD,SBLOCK,XR(C)::QAB(D)
- S(e);N_GUARD,XB(G)::R1(C)
- S(c);::S(F)
- S(e);N_GUARD::R1(C),XS(e)
- S(e);N_GUARD::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- Q(D);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAR1(D),XS(e)
- Refutation
- S(c);XQ(D)
- Try
- Q(D);CHECK
- Vars
- K(a);OGATEB,S_FLIGHT,XR(C)::QAB1(D)
- K(a);OGATE,P-FLIGHT,P_SPINS(c)::QAR1(D)
- Refutation
- S(c);XQ(D)
- Try
- P(B);
- Vars
- S(c);N_GUARD,SBLOCK,XR(C)::QAB(D)
- S(c);XP(E)::S(F)
- S(c);::S(F)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- P(B);
- Vars
- S(c);N_GUARD,SBLOCK,XR(C)::QAB(D)
- S(c);XP(E)::S(F)
- S(c);::S(F)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- Actual
- Q(D);
- Vars
- K(a);OGATEB,S_FLIGHT,XR(C)::QAB1(D)
- K(a);P-FLIGHT,P_SPINS(c)::QAR1(D)
- S(c);N_GUARD,SBLOCK,XR(C)::QAB(D)
- S(c);N_GUARD,XP(E)::QAB1(D)
- S(e);N_GUARD,XB(G)::R1(C)
- S(e);N_GUARD::R1(C),XS(e)
- S(c);N_GUARD::QAB1(D)
- S(e);N_GUARD,SBLOCK::R1(C)
- S(e);N_GUARD::R1(C)
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).