MESON Chess Problem Database
Problem Display
PID: 46116 (q7/bbRB3r/r5Rp/2P1N1p1/QNn2kP1/2BP1P1K/3P2P1/5n2 w - - 0 1)
van Gool, Johann Christoffel
Journal de Geneve, 1978
#2
14 + 10
| 56 | The Problemist | 1981 |
| 702 | Phenix | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxa4
- 2.Rf6#
- 1...Ra5
- 2.Rf6#
- 1...Rc6
- 2.Sd5#
- 1...Rf6
- 2.Rxf6#
- 1...Rxg6
- 2.Sxg6#
- 1...Bb6
- 2.Rf6#
- 1...Bc6
- 2.Rf6#
- 1...Sh2
- 2.g3#
- 1...Sfe3
- 2.g3#
- 1...Sb2
- 2.Sd5#
- 1...Sxd2
- 2.Sd5#
- 1...Sa3
- 2.Sd5#
- 1...Sce3
- 2.Sd5#
- 1...Sa5
- 2.Sd5#
- 1...Sxe5
- 2.Sd5#
- 1...Sb6
- 2.Sd5#
- 2.Rf6#
- 1...Sd6
- 2.Sd5#
- 1...Rxa4
- Tries
- 1.Sbc6?
- threat
- 2.Rf6#
- 2.Qxc4#
- 1...Rxa4
- 2.Rf6#
- 1...Rxc6
- 2.Qxc4#
- 1...Rxd7
- 2.Rf6#
- 1...Bxc5
- 2.Rf6#
- 1...Bxc6
- 2.Rf6#
- 1...Sxd2
- 2.Bxd2#
- 1...Qd8
- 2.Qxc4#
- 1...Qf8
- 2.Qxc4#
- 1...Qg8
- 2.Rf6#
- 1...Qh8
- 2.Qxc4#
- 1...Rf7
- 2.Qxc4#
- 1...Se3
- 2.g3#
- 1...Sg3!
- threat
- 1.Sec6?
- threat
- 2.Sd5#
- 2.Rf6#
- 1...Rxc6
- 2.Sd5#
- 1...Rxd7
- 2.Rf6#
- 1...Bxc6
- 2.Rf6#
- 1...Sfxd2
- 2.Sd5#
- 1...Scxd2
- 2.Sd5#
- 1...Qd8
- 2.Sd5#
- 1...Qf8
- 2.Sd5#
- 1...Qg8
- 2.Rf6#
- 1...Qh8
- 2.Sd5#
- 1...Rf7
- 2.Sd5#
- 1...Sg3
- 2.Sd5#
- 1...Sce3
- 2.Sd5#
- 2.Be5#
- 1...Sd6
- 2.Sd5#
- 2.Be5#
- 1...Sfe3!
- threat
- 1.Bc6?
- threat
- 2.Sd5#
- 2.Rf6#
- 1...Rxc6
- 2.Sd5#
- 1...Bxc6
- 2.Rf6#
- 1...Sfxd2
- 2.Sd5#
- 1...Scxd2
- 2.Sd5#
- 1...Qc8
- 2.Sd5#
- 1...Qf8
- 2.Sd5#
- 1...Qg8
- 2.Rf6#
- 1...Qh8
- 2.Sd5#
- 1...Rd7
- 2.Rf6#
- 1...Rf7
- 2.Sd5#
- 2.Rxf7#
- 1...Bc8
- 2.Sd5#
- 1...Sfe3
- 2.g3#
- 1...Sg3
- 2.Sd5#
- 1...Sce3
- 2.Sd5#
- 1...Sd6
- 2.Sd5#
- 1...Qd8!
- threat
- 1.Rgc6?
- threat
- 2.Sd5#
- 2.Sg6#
- 1...Rxc6
- 2.Sd5#
- 1...Rxd7
- 2.Sg6#
- 1...Bxc6
- 2.Sg6#
- 1...Sfxd2
- 2.Sd5#
- 1...Scxd2
- 2.Sd5#
- 1...Sxe5
- 2.Sd5#
- 1...Qe8
- 2.Sd5#
- 1...Rg7
- 2.Sd5#
- 1...Sfe3
- 2.Sg6#
- 2.g3#
- 1...Qg8!
- threat
- 1.Qc6?
- threat
- 2.Sd5#
- 2.Rf6#
- 1...Rxc6
- 2.Sd5#
- 1...Rxd7
- 2.Rf6#
- 1...Bxc6
- 2.Rf6#
- 1...Sfxd2
- 2.Sd5#
- 1...Scxd2
- 2.Sd5#
- 1...Qd8
- 2.Sd5#
- 1...Qf8
- 2.Sd5#
- 1...Qg8
- 2.Rf6#
- 1...Qh8
- 2.Sd5#
- 1...Rf7
- 2.Sd5#
- 1...Sfe3
- 2.g3#
- 1...Sg3
- 2.Sd5#
- 1...Sb6
- 2.Rf6#
- 2.Qf6#
- 1...Sd6
- 2.Sd5#
- 1...Sce3!
- threat
- 1.c6?
- threat
- 2.Sd5#
- 2.Rf6#
- 1...Rxc6
- 2.Sd5#
- 1...Rxd7
- 2.Rf6#
- 1...Bxc6
- 2.Rf6#
- 1...Sfxd2
- 2.Sd5#
- 1...Scxd2
- 2.Sd5#
- 1...Qd8
- 2.Sd5#
- 1...Qf8
- 2.Sd5#
- 1...Qg8
- 2.Rf6#
- 1...Qh8
- 2.Sd5#
- 1...Ra5
- 2.Rf6#
- 1...Rf7
- 2.Sd5#
- 1...Sfe3
- 2.g3#
- 1...Sg3
- 2.Sd5#
- 1...Sce3
- 2.Sd5#
- 1...Sd6
- 2.Sd5#
- 1...Bd4!
- threat
- 1.Sbc6?
- Keys
- 1.Rcc6!
- threat
- 2.Sd5#
- 2.Rgf6#
- 1...Rxc6
- 2.Sd5#
- 1...Rxd7
- 2.Rgf6#
- 1...Bxc6
- 2.Rf6#
- 1...Sfxd2
- 2.Sd5#
- 1...Scxd2
- 2.Sd5#
- 1...Qd8
- 2.Sd5#
- 1...Qf8
- 2.Sd5#
- 1...Qg8
- 2.Rgf6#
- 1...Qh8
- 2.Sd5#
- 1...Rf7
- 2.Sd5#
- 1...Sfe3
- 2.g3#
- 1...Sg3
- 2.Sd5#
- 1...Sce3
- 2.Sd5#
- 1...Sd6
- 2.Sd5#
- threat
- 1.Rcc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 10
- Sets
- R(e);N_GUARD,XQ(G)::R(L)
- R(e);N_GUARD::R(L)
- R(e);S_CUTB(h)::S(H)
- R(e);N_GUARD::R(L),XR(e)
- R(e);XR(L)::S(K),XR(e)
- B(g);S_CUTR(e)::R(L)
- B(h);S_CUTR(e)::R(L)
- S(a);N_GUARD::P(B)
- S(b);::QAR(G)+S(H),DCHECK
- S(b);XP(A)::QAR(G)+S(H),DCHECK
- S(b);XS(K)::QAR(G)+S(H),DCHECK
- Tries
- Try
- S(H);P_PINS(b)
- Threat
- DUALS(2)
- Vars
- R(e);N_SPINS(b),XQ(G)::R(L)
- R(e);XS(H)::QAR(G),XS(b)
- R(i);XB(N)::R(L)
- B(g);XP(J)::R(L)
- B(h);XS(H)::R(L)
- S(a);OGATE,XP(A)::B(C),XS(a)
- Q(j);::QAR(G),XS(b)
- Q(j);::R(L)
- R(i);::QAR(G),XS(b)
- S(a);N_GUARD::P(B)
- Refutation
- S(a);
- Try
- S(K);
- Threat
- DUALS(2)
- Vars
- R(e);XS(K)::S(H)
- R(i);XB(N)::R(L)
- B(h);XS(K)::R(L)
- S(a);XP(A)::S(H)
- S(b);XP(A)::QAR(G)+S(H),DCHECK
- Q(j);::S(H)
- Q(j);::R(L)
- R(i);::S(H)
- S(a);::S(H)
- Refutation
- S(a);
- Try
- B(N);
- Threat
- DUALS(2)
- Vars
- R(e);XB(N)::S(H)
- B(h);XB(N)::R(L)
- S(a);XP(A)::S(H)
- S(b);XP(A)::QAR(G)+S(H),DCHECK
- Q(j);P_PINP(I)::S(H)
- Q(j);::S(H)
- Q(j);::R(L)
- R(i);::R(L)
- B(h);P_PINP(I)::S(H)
- S(a);N_GUARD::P(B)
- S(a);::S(H)
- S(b);::QAR(G)+S(H),DCHECK
- Refutation
- Q(j);
- Try
- R(L);
- Threat
- DUALS(2)
- Vars
- R(e);XR(L)::S(H)
- R(i);XB(N)::S(K)
- B(h);XR(L)::S(K)
- S(a);XP(A)::S(H)
- S(b);XP(A)::QAR(G)+S(H),DCHECK
- S(b);XS(K)::QAR(G)+S(H),DCHECK
- Q(j);::S(H)
- R(i);::S(H)
- Refutation
- Q(j);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- R(e);XQ(G)::S(H)
- R(i);XB(N)::R(L)
- B(h);XQ(G)::R(L)
- S(a);XP(A)::S(H)
- S(b);XP(A)::S(H)
- Q(j);::S(H)
- Q(j);::R(L)
- R(i);::S(H)
- S(a);N_GUARD::P(B)
- S(a);::S(H)
- S(b);::S(H)
- Refutation
- S(b);
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- R(e);XP(J)::S(H)
- R(i);XB(N)::R(L)
- B(h);XP(J)::R(L)
- S(a);XP(A)::S(H)
- S(b);XP(A)::QAR(G)+S(H),DCHECK
- Q(j);::S(H)
- Q(j);::R(L)
- R(e);::R(L)
- R(i);::S(H)
- S(a);N_GUARD::P(B)
- S(a);::S(H)
- S(b);::QAR(G)+S(H),DCHECK
- Refutation
- B(g);
- Try
- Actual
- R(M);
- Threat
- DUALS(2)
- Vars
- R(e);XR(M)::S(H)
- R(i);XB(N)::R(L)
- B(h);XR(M)::R(L)
- S(a);XP(A)::S(H)
- S(b);XP(A)::QAR(G)+S(H),DCHECK
- Q(j);::S(H)
- Q(j);::R(L)
- R(i);::S(H)
- S(a);N_GUARD::P(B)
- S(a);::S(H)
- S(b);::QAR(G)+S(H),DCHECK
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).