MESON Chess Problem Database
Problem Display
PID: 189339 (2R1R1nK/r2k3p/5pr1/8/1p1N1p2/7b/3N4/n2Q4 w - - 0 1)
Flatt, Karl
Schweizerische Schachzeitung, 1972
#2
6 + 10
SOLUTION
- SOUND
- Sets
- 1...Rc7
- 2.Rcd8#
- 1...Se7
- 2.Red8#
- 1...Rc7
- Tries
- 1.Sb1?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Kd6
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 1...Rg2
- 2.Se2#
- 1...Rg3
- 2.Sf3#
- 1...Rg5
- 2.Sf5#
- 1...Ra2
- 2.Sc2#
- 1...Ra3
- 2.Sb3#
- 1...Ra5
- 2.Sb5#
- 1...Ra6
- 2.Sc6#
- 1...Rc7
- 2.Rcd8#
- 1...Bf1
- 2.Se2#
- 1...Bg2
- 2.Sf3#
- 1...Bg4
- 2.Se2#
- 2.Sf3#
- 1...Bf5
- 2.Sxf5#
- 1...Be6
- 2.Sxe6#
- 1...Sc2
- 2.Sxc2#
- 1...Sb3
- 2.Sxb3#
- 1...Se7
- 2.Red8#
- 1...b3
- 2.Sc2#
- 2.Se2#
- 2.Sxb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f3
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f5
- 2.Se6#
- 1...Rg1!
- threat
- 1.S2b3?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Kd6
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 1...Sxb3
- 2.Sxb3#
- 1...Rg2
- 2.Se2#
- 1...Rg3
- 2.Sf3#
- 1...Rg5
- 2.Sf5#
- 1...Ra2
- 2.Sc2#
- 1...Ra5
- 2.Sb5#
- 1...Ra6
- 2.Sc6#
- 1...Rc7
- 2.Rcd8#
- 1...Bf1
- 2.Se2#
- 1...Bg2
- 2.Sf3#
- 1...Bg4
- 2.Se2#
- 2.Sf3#
- 1...Bf5
- 2.Sxf5#
- 1...Be6
- 2.Sxe6#
- 1...Sc2
- 2.Sxc2#
- 1...Se7
- 2.Red8#
- 1...f3
- 2.Sc2#
- 2.Se2#
- 2.Sxf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f5
- 2.Se6#
- 1...Rg1!
- threat
- 1.S2f3?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Kd6
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sb5#
- 2.Sf5#
- 2.Se6#
- 1...Rg2
- 2.Se2#
- 1...Rg5
- 2.Sf5#
- 1...Ra2
- 2.Sc2#
- 1...Ra3
- 2.Sb3#
- 1...Ra5
- 2.Sb5#
- 1...Ra6
- 2.Sc6#
- 1...Rc7
- 2.Rcd8#
- 1...Bf1
- 2.Se2#
- 1...Bf5
- 2.Sxf5#
- 1...Be6
- 2.Sxe6#
- 1...Sc2
- 2.Sxc2#
- 1...Sb3
- 2.Sxb3#
- 1...Se7
- 2.Red8#
- 1...b3
- 2.Sc2#
- 2.Se2#
- 2.Sxb3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f5
- 2.Se6#
- 1...Rg1!
- threat
- 1.Sc4?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Rg2
- 2.Se2#
- 1...Rg3
- 2.Sf3#
- 1...Rg5
- 2.Sf5#
- 1...Ra2
- 2.Sc2#
- 1...Ra3
- 2.Sb3#
- 1...Ra5
- 2.Sb5#
- 1...Ra6
- 2.Sc6#
- 1...Rc7
- 2.Rcd8#
- 1...Bf1
- 2.Se2#
- 1...Bg2
- 2.Sf3#
- 1...Bg4
- 2.Se2#
- 2.Sf3#
- 1...Bf5
- 2.Sxf5#
- 1...Be6
- 2.Sxe6#
- 1...Sc2
- 2.Sxc2#
- 1...Sb3
- 2.Sxb3#
- 1...Se7
- 2.Red8#
- 1...b3
- 2.Sc2#
- 2.Se2#
- 2.Sxb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f3
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f5
- 2.Se6#
- 1...Rg1!
- threat
- 1.Se4?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Rg2
- 2.Se2#
- 1...Rg3
- 2.Sf3#
- 1...Rg5
- 2.Sf5#
- 1...Ra2
- 2.Sc2#
- 1...Ra3
- 2.Sb3#
- 1...Ra5
- 2.Sb5#
- 1...Ra6
- 2.Sc6#
- 1...Rc7
- 2.Rcd8#
- 1...Bf1
- 2.Se2#
- 1...Bg4
- 2.Se2#
- 2.Sf3#
- 1...Bf5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sxf5#
- 2.Sc6#
- 2.Se6#
- 1...Be6
- 2.Sxe6#
- 1...Sc2
- 2.Sxc2#
- 1...Sb3
- 2.Sxb3#
- 1...Se7
- 2.Red8#
- 1...b3
- 2.Sc2#
- 2.Se2#
- 2.Sxb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f3
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f5
- 2.Se6#
- 1...Rg1!
- threat
- 1.Qc2?
- threat
- 2.Rcd8#
- 2.Qc6#
- 1...Kd6
- 2.Qc6#
- 1...Ra6
- 2.Rcd8#
- 2.Qc7#
- 1...Rc7
- 2.Rcd8#
- 2.Qxc7#
- 1...Ra8
- 2.Qc6#
- 2.Qc7#
- 1...Bg2
- 2.Rcd8#
- 1...Se7
- 2.Rcd8#
- 2.Red8#
- 1...f5
- 2.Rcd8#
- 1...Sxc2!
- threat
- 1.Qe2?
- threat
- 2.Red8#
- 1...Be6
- 2.Qxe6#
- 1...Kd6!
- threat
- 1.Qa4+?
- 1...Kd6
- 2.Qc6#
- 1...Rxa4!
- 1...Kd6
- 1.Qc1?
- threat
- 2.Rcd8#
- 2.Qc6#
- 1...Kd6
- 2.Qc6#
- 1...Ra6
- 2.Rcd8#
- 2.Qc7#
- 1...Rc7
- 2.Rcd8#
- 2.Qxc7#
- 1...Ra8
- 2.Qc6#
- 2.Qc7#
- 1...Bg2
- 2.Rcd8#
- 1...Se7
- 2.Rcd8#
- 2.Red8#
- 1...f5
- 2.Rcd8#
- 1...Sc2!
- threat
- 1.Qe1?
- threat
- 2.Red8#
- 1...Be6
- 2.Qxe6#
- 1...Kd6!
- threat
- 1.Sb1?
- Keys
- 1.Sf1!
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Kd6
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 1...Bxf1
- 2.Se2#
- 1...Rg2
- 2.Se2#
- 1...Rg3
- 2.Sf3#
- 1...Rg5
- 2.Sf5#
- 1...Ra2
- 2.Sc2#
- 1...Ra3
- 2.Sb3#
- 1...Ra5
- 2.Sb5#
- 1...Ra6
- 2.Sc6#
- 1...Rc7
- 2.Rcd8#
- 1...Bg2
- 2.Sf3#
- 1...Bg4
- 2.Se2#
- 2.Sf3#
- 1...Bf5
- 2.Sxf5#
- 1...Be6
- 2.Sxe6#
- 1...Sc2
- 2.Sxc2#
- 1...Sb3
- 2.Sxb3#
- 1...Se7
- 2.Red8#
- 1...b3
- 2.Sc2#
- 2.Se2#
- 2.Sxb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f3
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f5
- 2.Se6#
- threat
- 1.Sf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 0
- Sets
- R(g);SBLOCK::R1(D)
- S(j);SBLOCK::R1(E)
- Tries
- Try
- S(B);
- Threat
- DUALS(8)
- Vars
- R(f);::QAR(A)+S(C)
- R(g);::QAR(A)+S(C)
- R(g);SBLOCK::R1(D)
- B(b);::QAR(A)+S(C)
- B(b);::QAR(A)+S(C),XB(b)
- S(a);::QAR(A)+S(C),XS(a)
- S(j);SBLOCK::R1(E)
- P(e);::QAR(A)+S(C)
- Refutation
- R(f);
- Try
- S(B);
- Threat
- DUALS(7)
- Vars
- S(a);XS(B)::QAR(A)+S(C),XS(a)
- R(f);::QAR(A)+S(C)
- R(g);::QAR(A)+S(C)
- R(g);SBLOCK::R1(D)
- B(b);::QAR(A)+S(C)
- B(b);::QAR(A)+S(C),XB(b)
- S(a);::QAR(A)+S(C),XS(a)
- S(j);SBLOCK::R1(E)
- P(e);::QAR(A)+S(C)
- Refutation
- R(f);
- Try
- S(B);
- Threat
- DUALS(7)
- Vars
- R(f);::QAR(A)+S(C)
- R(g);::QAR(A)+S(C)
- R(g);SBLOCK::R1(D)
- B(b);::QAR(A)+S(C)
- B(b);::QAR(A)+S(C),XB(b)
- S(a);::QAR(A)+S(C),XS(a)
- S(j);SBLOCK::R1(E)
- P(e);::QAR(A)+S(C)
- Refutation
- R(f);
- Try
- S(B);
- Threat
- DUALS(8)
- Vars
- R(f);::QAR(A)+S(C)
- R(g);::QAR(A)+S(C)
- R(g);SBLOCK::R1(D)
- B(b);::QAR(A)+S(C)
- B(b);::QAR(A)+S(C),XB(b)
- S(a);::QAR(A)+S(C),XS(a)
- S(j);SBLOCK::R1(E)
- P(e);::QAR(A)+S(C)
- Refutation
- R(f);
- Try
- S(B);
- Threat
- DUALS(8)
- Vars
- R(f);::QAR(A)+S(C)
- R(g);::QAR(A)+S(C)
- R(g);SBLOCK::R1(D)
- B(b);::QAR(A)+S(C)
- B(b);::QAR(A)+S(C),XB(b)
- S(a);::QAR(A)+S(C),XS(a)
- S(j);SBLOCK::R1(E)
- P(e);::QAR(A)+S(C)
- Refutation
- R(f);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(h);P-FLIGHT::QAR1(A)
- B(b);::R1(D)
- P(e);::R1(D)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Threat
- R1(E)
- Vars
- B(b);N_GUARD::QAB1(A),XB(b)
- Refutation
- K(h);P-FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(h);P-FLIGHT::QAR1(A)
- Refutation
- R(g);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(h);P-FLIGHT::QAR1(A)
- B(b);::R1(D)
- P(e);::R1(D)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- R1(E)
- Vars
- B(b);N_GUARD::QAB1(A),XB(b)
- Refutation
- K(h);P-FLIGHT
- Try
- Actual
- S(B);
- Threat
- DUALS(8)
- Vars
- B(b);XS(B)::QAR(A)+S(C)
- R(f);::QAR(A)+S(C)
- R(g);::QAR(A)+S(C)
- R(g);SBLOCK::R1(D)
- B(b);::QAR(A)+S(C)
- B(b);::QAR(A)+S(C),XB(b)
- S(a);::QAR(A)+S(C),XS(a)
- S(j);SBLOCK::R1(E)
- P(e);::QAR(A)+S(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).