MESON Chess Problem Database
Problem Display
PID: 176409 (1n3K2/2p2PP1/RN5Q/1N2k3/R3P3/2P5/3P2r1/2B1r2B w - - 0 1)
Cheylan, Yves
Schach-Echo, 1983
#2
13 + 5
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sc4#
- 2.d4#
- 1...Rxd2
- 2.Sc4#
- 1...Re2
- 2.Sc4#
- 2.d4#
- 1...Rf2
- 2.Sc4#
- 2.d4#
- 1...Rh2
- 2.Sc4#
- 2.d4#
- 1...Rg3
- 2.Sc4#
- 2.d4#
- 1...Rg4
- 2.Sc4#
- 2.d4#
- 1...Rg5
- 2.d4#
- 1...Rg6
- 2.Sc4#
- 1...Rxg7
- 2.Sc4#
- 2.d4#
- 1...Sxa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7+
- 2.Sxd7#
- 1...cxb6
- 2.Qd6#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...Rg1
- Tries
- 1.Sd5?
- threat
- 2.Re6#
- 2.Qf4#
- 2.Qe6#
- 2.Qf6#
- 1...Rxe4
- 2.Qe6#
- 1...Sxa6
- 2.Qf6#
- 1...Rf1
- 2.Re6#
- 2.Qe6#
- 1...Rf2
- 2.Re6#
- 2.Qe6#
- 2.d4#
- 1...Rg4
- 2.Re6#
- 2.Qe6#
- 2.Qf6#
- 2.d4#
- 1...Rg5
- 2.Re6#
- 2.Qxg5#
- 2.Qe6#
- 2.Qf6#
- 2.d4#
- 1...Rg6
- 2.Qf4#
- 2.d4#
- 1...Sc6
- 2.Qf6#
- 1...c6
- 2.Qd6#
- 2.Qf6#
- 1...Sd7+!
- threat
- 1.Bxg2?
- threat
- 2.Sc4#
- 2.d4#
- 1...Sd7+
- 2.Sxd7#
- 1...cxb6
- 2.Qd6#
- 2.d4#
- 1...Rd1
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 2.Sd7#
- 1...c5
- 2.Sc4#
- 2.Qd6#
- 1...Rxe4!
- threat
- 1.Rd4?
- threat
- 2.Sc4#
- 1...Sd7+
- 2.Sxd7#
- 1...Rxe4
- 2.Rd5#
- 1...cxb6
- 2.Qd6#
- 1...Rg5!
- threat
- 1.R6a5?
- threat
- 2.Sxc7#
- 1...Sd7+
- 2.Sxd7#
- 1...Rxd2
- 2.Sc4#
- 1...cxb6
- 2.Qd6#
- 1...Rg5
- 2.d4#
- 1...Sa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...Rg6!
- threat
- 1.Qf4+?
- 1...Ke6
- 2.Sd4#
- 2.Sxc7#
- 2.Qf5#
- 1...Kxf4!
- 1...Ke6
- 1.Qg5+?
- 1...Ke6
- 2.Qe7#
- 2.Qf5#
- 1...Rxg5!
- 1...Ke6
- 1.d3?
- threat
- 2.Sc4#
- 2.Bf4#
- 1...Sd7+
- 2.Sxd7#
- 1...Rxc1
- 2.Sc4#
- 1...cxb6
- 2.Bf4#
- 2.Qd6#
- 1...Rg6
- 2.Sc4#
- 1...Rf1
- 2.Sc4#
- 1...Re3
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rf2
- 2.Sc4#
- 2.d4#
- 1...Rg4
- 2.Sc4#
- 2.d4#
- 1...Rg5
- 2.Sc4#
- 2.d4#
- 1...Rxe4!
- threat
- 1.Sd5?
- Keys
- 1.Sxc7!
- threat
- 2.R6a5#
- 1...Sd7+
- 2.Sxd7#
- 1...Rxd2
- 2.Sc4#
- 1...Sxa6
- 2.Sd7#
- 1...Rg5
- 2.d4#
- 1...Rg6
- 2.Sc4#
- 1...Sc6
- 2.Sd7#
- threat
- 1.Sxc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- R(b);XP(C)::S(I)
- R(b);::P(C)
- R(b);::S(I)
- S(e);N_GUARD,XR(H)::S(I)
- S(e);N_GUARD::S(I)
- S(e);CHECK,N_GUARD::S(I),XS(e)
- P(d);N_GUARD,XS(I)::QAB1(J)
- P(d);N_GUARD::QAB1(J)
- Tries
- Try
- S(I);
- Threat
- DUALS(4)
- Vars
- R(a);XP(F)::QAR1(J)
- S(e);XR(H)::QAB1(J)
- S(e);::QAB1(J)
- Refutation
- S(e);CHECK
- Try
- B(B);XR(b)
- Threat
- DUALS(2)
- Vars
- S(e);CHECK,N_GUARD::S(I),XS(e)
- R(a);::S(I)
- Refutation
- R(a);XP(F)
- Try
- R(E);
- Threat
- S(I)
- Vars
- S(e);CHECK,N_GUARD::S(I),XS(e)
- R(a);SBLOCK,XP(F)::R1(E)
- P(d);N_GUARD,XS(I)::QAB1(J)
- Refutation
- R(b);
- Try
- R(H);
- Threat
- R(H)+S(G),XP(d)
- Vars
- S(e);CHECK,N_GUARD::S(I),XS(e)
- R(b);XP(C)::S(I)
- P(d);N_GUARD,XS(I)::QAB1(J)
- R(b);::P(C)
- S(e);N_GUARD::S(I)
- P(d);N_GUARD::QAB1(J)
- Refutation
- R(b);
- Try
- Q(J);CHECK
- Refutation
- K(c);S_FLIGHT,XQ(J)
- Try
- Q(J);CHECK
- Refutation
- R(b);XQ(J)
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- S(e);CHECK,N_GUARD::S(I),XS(e)
- R(a);XB(A)::S(I)
- R(b);::S(I)
- R(a);P_PINP(K)::S(I)
- R(a);::S(I)
- Refutation
- R(a);XP(F)
- Try
- Actual
- S(G);XP(d)
- Threat
- R(H)
- Vars
- S(e);CHECK,N_GUARD::S(I),XS(e)
- R(b);XP(C)::S(I)
- S(e);N_GUARD,XR(H)::S(I)
- R(b);::P(C)
- R(b);::S(I)
- S(e);N_GUARD::S(I)
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).