MESON Chess Problem Database
Problem Display
PID: 229046 (3b2n1/1p1K4/N1p1Rp2/3kN1P1/1R4rp/3P3b/5B2/6r1 w - - 0 1)
Karsch, Wilhelm
10th HM., 64 Shakhmatnoe obozrenie, 1926
#2
8 + 10
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rg2
- 2.Rd4#
- 1...Rg3
- 2.Rd4#
- 1...Rxb4
- 2.Sxb4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.dxe4#
- 1...Rxg5
- 2.Rd4#
- 1...Bc7
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...fxe5
- 2.Rd6#
- 1...Rg2
- Tries
- 1.Sf3?
- threat
- 2.Rd6#
- 1...Rxb4
- 2.Sxb4#
- 1...Rxg5
- 2.Rd4#
- 1...R4g2
- 2.Rd4#
- 1...R4g3
- 2.Rd4#
- 1...Rc4
- 2.dxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.dxe4#
- 1...Bc7
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...Rf4!
- threat
- 1.Sc4?
- threat
- 2.Se3#
- 2.Rd6#
- 1...Rxc4
- 2.dxc4#
- 1...Rxg5
- 2.Se3#
- 1...bxa6
- 2.Rd6#
- 1...Re1
- 2.Rd6#
- 1...R1g3
- 2.Rd6#
- 1...R4g2
- 2.Se3#
- 1...Rd4
- 2.Se3#
- 1...Re4
- 2.dxe4#
- 1...Rf4
- 2.Se3#
- 1...Bb6
- 2.Sxb6#
- 2.Rd6#
- 1...Bc7
- 2.Se3#
- 2.Sxc7#
- 1...Be7
- 2.Se3#
- 2.Sb6#
- 2.Sc7#
- 1...R4g3!
- threat
- 1.Sxg4?
- threat
- 2.Se3#
- 2.Rd4#
- 2.Rd6#
- 1...Bxg4
- 2.Rd4#
- 1...bxa6
- 2.Rd6#
- 1...Re1
- 2.Rd4#
- 2.Rd6#
- 1...Rg3
- 2.Rd4#
- 2.Rd6#
- 1...Bb6
- 2.Rd6#
- 1...Bc7
- 2.Se3#
- 2.Sxc7#
- 2.Rd4#
- 1...Be7
- 2.Se3#
- 2.Sc7#
- 2.Rd4#
- 1...c5
- 2.Se3#
- 2.Rd6#
- 1...Rxg4!
- threat
- 1.Sxc6?
- threat
- 2.Rb5#
- 2.Rd6#
- 1...Rxb4
- 2.Saxb4#
- 2.Scxb4#
- 1...Rxg5
- 2.Rd4#
- 2.Rb5#
- 1...bxa6
- 2.Rd6#
- 1...Rb1
- 2.Rd6#
- 1...Rc1
- 2.Rd6#
- 1...R4g2
- 2.Rd4#
- 2.Rb5#
- 1...R4g3
- 2.Rd4#
- 2.Rb5#
- 1...Rc4
- 2.dxc4#
- 1...Rd4
- 2.Rxd4#
- 2.Rb5#
- 1...Re4
- 2.Rb5#
- 2.dxe4#
- 1...Rf4
- 2.Rb5#
- 1...Bb6
- 2.Rd6#
- 1...Bc7
- 2.Sxc7#
- 2.Rb5#
- 1...Be7
- 2.Sc7#
- 1...b5
- 2.Rxb5#
- 2.Rd6#
- 1...bxc6!
- threat
- 1.Sf7?
- threat
- 2.Rd6#
- 1...Rxb4
- 2.Sxb4#
- 1...Rxg5
- 2.Rd4#
- 1...R4g2
- 2.Rd4#
- 1...R4g3
- 2.Rd4#
- 1...Rc4
- 2.dxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.dxe4#
- 1...Bc7
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...Rf4!
- threat
- 1.Rc4?
- threat
- 2.Sb4#
- 2.Rc5#
- 1...bxa6
- 2.Rc5#
- 1...Rb1
- 2.Rc5#
- 1...Rc1
- 2.Sb4#
- 1...Ba5
- 2.Rc5#
- 1...Bb6
- 2.Sb4#
- 1...Be7
- 2.Sc7#
- 1...c5
- 2.Rxc5#
- 1...b6
- 2.Sb4#
- 1...Rxc4!
- threat
- 1.Re4?
- threat
- 2.Sb4#
- 2.Rd6#
- 1...Rxg5
- 2.Sb4#
- 2.Rd4#
- 1...bxa6
- 2.Rd6#
- 1...Rf4
- 2.Sb4#
- 1...Rb1
- 2.Rd6#
- 1...R4g2
- 2.Sb4#
- 2.Rd4#
- 1...R4g3
- 2.Sb4#
- 2.Rd4#
- 1...Ba5
- 2.Rd6#
- 1...Bc7
- 2.Sb4#
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...c5
- 2.Rd6#
- 1...Rxe4!
- threat
- 1.Rb5+?
- 1...c5
- 2.Rxc5#
- 1...cxb5!
- 1...c5
- 1.Sf3?
- Keys
- 1.Sg6!
- threat
- 2.Rd6#
- 1...Rxb4
- 2.Sxb4#
- 1...Rxg5
- 2.Sf4#
- 2.Rd4#
- 1...R4g2
- 2.Sf4#
- 2.Rd4#
- 1...R4g3
- 2.Sf4#
- 2.Rd4#
- 1...Rc4
- 2.dxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.dxe4#
- 1...Rf4
- 2.Sxf4#
- 1...Bc7
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- threat
- 1.Sg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(c);N_GUARD,P_PINR(G)::R1(C)
- R(c);P_PINR(G),XR(C)::S(F),XR(c)
- R(c);N_GUARD,P_PINR(G)::R1(C),XR(c)
- R(c);OGATE,P_PINR(G)::P(B),XR(c)
- R(c);N_GUARD,P_PINR(G),XP(E)::R1(C)
- B(i);N_GUARD::S(F),XB(i)
- B(i);N_GUARD::S(F)
- P(g);SBLOCK,XS(D)::R1(G)
- Tries
- Try
- S(D);
- Threat
- R1(G)
- Vars
- R(c);P_PINR(G),XR(C)::S(F),XR(c)
- R(c);N_GUARD,P_PINR(G),XP(E)::R1(C)
- R(c);N_GUARD,P_PINR(G)::R1(C)
- R(c);OGATE,P_PINR(G)::P(B),XR(c)
- R(c);N_GUARD,P_PINR(G)::R1(C),XR(c)
- B(i);N_GUARD::S(F),XB(i)
- B(i);N_GUARD::S(F)
- Refutation
- R(c);P_PINR(G)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(c);OGATE,P_PINR(G),XS(D)::P(B),XR(c)
- R(c);P_PINR(G),XP(E)::S(D)
- P(h);XS(F)::R1(G)
- R(a);::R1(G)
- R(c);P_PINR(G)::S(D)
- R(c);OGATE,P_PINR(G)::P(B),XR(c)
- Refutation
- R(c);P_PINR(G)
- Try
- S(D);XR(c)
- Threat
- DUALS(3)
- Vars
- B(b);P_PINR(G),XS(D)::R1(C)
- P(h);XS(F)::R1(G)
- B(i);::R1(G)
- Refutation
- R(a);XS(D)
- Try
- S(D);XP(f)
- Threat
- DUALS(2)
- Vars
- P(h);XS(F)::R1(G)
- R(a);::R1(G)
- R(c);OGATE,P_PINR(G)::P(B),XR(c)
- R(c);P_PINR(G)::R(C)
- B(i);::R1(G)
- B(i);N_GUARD::S(F)
- Refutation
- P(h);XS(D)
- Try
- S(D);
- Threat
- R1(G)
- Vars
- R(c);P_PINR(G),XR(C)::S(F),XR(c)
- R(c);N_GUARD,P_PINR(G),XP(E)::R1(C)
- R(c);N_GUARD,P_PINR(G)::R1(C)
- R(c);OGATE,P_PINR(G)::P(B),XR(c)
- R(c);N_GUARD,P_PINR(G)::R1(C),XR(c)
- B(i);N_GUARD::S(F),XB(i)
- B(i);N_GUARD::S(F)
- Refutation
- R(c);P_PINR(G)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- P(h);XS(F)::R1(C)
- R(a);::R1(C)
- R(a);::S(F)
- B(i);::R1(C)
- B(i);::S(F)
- B(i);N_GUARD::S(F)
- P(f);::R1(C),XP(f)
- P(h);::S(F)
- Refutation
- R(c);P_PINR(G),XR(C)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- P(h);XS(F)::R1(G)
- R(c);P_PINR(G)::S(F)
- R(a);::R1(G)
- B(i);::R1(G)
- B(i);N_GUARD::S(F)
- P(f);::R1(G)
- Refutation
- R(c);P_PINR(G),XR(C)
- Try
- R(C);CHECK
- Vars
- P(f);P_SPINP(f)::R1(C),XP(f)
- Refutation
- P(f);XR(C)
- Try
- Actual
- S(D);
- Threat
- R1(G)
- Vars
- R(c);P_PINR(G),XR(C)::S(F),XR(c)
- R(c);OGATE,P_PINR(G)::P(B),XR(c)
- R(c);N_GUARD,P_PINR(G)::R1(C),XR(c)
- R(c);N_GUARD,P_PINR(G)::S(D),XR(c)
- B(i);N_GUARD::S(F),XB(i)
- B(i);N_GUARD::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).