MESON Chess Problem Database
Problem Display
PID: 246446 (3R3K/2pN3n/2R1nP1Q/2pp4/qBPk1Pb1/4NPr1/3PP3/bB6 w - - 0 1)
Petite, Efren
Europe Echecs, 1989
#2
14 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bc3
- 2.Bxc3#
- 1...Sxf4
- 2.Bxc5#
- 2.Qxf4#
- 1...Seg5
- 2.Bxc5#
- 1...Sg7
- 2.Bxc5#
- 1...Sxd8
- 2.Bxc5#
- 1...Sef8
- 2.Bxc5#
- 1...Sxf6
- 2.Qxf6#
- 1...Bc3
- Tries
- 1.Sxc5?
- threat
- 2.Rxd5#
- 1...Qxc6
- 2.Sb3#
- 1...Bxf3
- 2.Sxe6#
- 1...Sxf4
- 2.Qxf4#
- 1...Sxf6
- 2.Qxf6#
- 1...Qa8
- 2.Sb3#
- 1...Sxd8!
- threat
- 1.Se5?
- threat
- 2.Rxd5#
- 1...Qxc6
- 2.Sc2#
- 2.Sxc6#
- 1...Bxf3
- 2.Sf5#
- 1...Sxf4
- 2.Qxf4#
- 1...Sxd8
- 2.Bxc5#
- 1...Qa8
- 2.Sc2#
- 1...Sxf6!
- threat
- 1.Sb8?
- threat
- 2.Rxd5#
- 1...Qxc6
- 2.Sxc6#
- 1...Sxf4
- 2.Qxf4#
- 1...Sxd8
- 2.Bxc5#
- 1...Sxf6
- 2.Qxf6#
- 1...Bxf3!
- threat
- 1.Sf8?
- threat
- 2.Rxd5#
- 1...Bxf3
- 2.Sxe6#
- 1...Sxf4
- 2.Qxf4#
- 1...Sxd8
- 2.Bxc5#
- 1...Sxf6
- 2.Qxf6#
- 1...Qxc6!
- threat
- 1.Rxc5?
- threat
- 2.Rxd5#
- 1...Qxd7
- 2.Sc2#
- 1...Bxf3
- 2.Sf5#
- 1...Sxf4
- 2.Qxf4#
- 1...Sxc5
- 2.Bxc5#
- 1...Sxf6
- 2.Qxf6#
- 1...dxc4
- 2.Rxc4#
- 2.Rd5#
- 1...Qb5
- 2.Sc2#
- 1...Qc6
- 2.Sc2#
- 1...Qa5
- 2.Sc2#
- 1...Qa8
- 2.Sc2#
- 1...c6!
- threat
- 1.Sxc5?
- Keys
- 1.Sb6!
- threat
- 2.Rxd5#
- 1...Qxc6
- 2.Sc2#
- 1...Bxf3
- 2.Sf5#
- 1...Sxf4
- 2.Qxf4#
- 1...Sxd8
- 2.Bxc5#
- 1...Sxf6
- 2.Qxf6#
- 1...Qa8
- 2.Sc2#
- threat
- 1.Sb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- B(a);N_GUARD::B(F),XB(a)
- S(h);N_GUARD::B(F),XP(f)
- S(h);N_GUARD,XR(M)::B(F),XP(f)
- S(j);OGATE,XP(J)::QAB(K),XS(j)
- Tries
- Try
- S(L);P_PINP(g),XP(f)
- Threat
- R1(M),XP(g)
- Vars
- Q(c);N_GUARD,XR(I)::S(L)
- B(e);N_GUARD,XP(E)::S(L),XS(h)
- S(h);OGATE,XP(H)::QAR2(K),XS(h)
- S(j);OGATE,XP(J)::QAB(K),XS(j)
- Q(c);N_GUARD,P_PINR(M)::S(L)
- Refutation
- S(h);N_SPINP(g),XR(M)
- Try
- S(L);P_PINP(g)
- Threat
- R1(M),XP(g)
- Vars
- B(e);N_GUARD,XP(E)::S(D)
- S(h);OGATE,XP(H)::QAR2(K),XS(h)
- S(h);N_GUARD,N_SPINP(g),XR(M)::B(F),XP(f)
- Q(c);N_GUARD,P_PINR(M)::S(D)
- Refutation
- S(j);XP(J)
- Try
- S(L);P_PINP(g)
- Threat
- R1(M),XP(g)
- Vars
- Q(c);XR(I)::S(L),XQ(c)
- S(h);OGATE,XP(H)::QAR2(K),XS(h)
- S(h);N_GUARD,N_SPINP(g),XR(M)::B(F),XP(f)
- S(j);OGATE,XP(J)::QAB(K),XS(j)
- Refutation
- B(e);XP(E)
- Try
- S(L);P_PINP(g)
- Threat
- R1(M),XP(g)
- Vars
- B(e);N_GUARD,XP(E)::S(L),XS(h)
- S(h);OGATE,XP(H)::QAR2(K),XS(h)
- S(h);N_GUARD,N_SPINP(g),XR(M)::B(F),XP(f)
- S(j);OGATE,XP(J)::QAB(K),XS(j)
- Refutation
- Q(c);XR(I)
- Try
- R(I);XP(f)
- Threat
- R1(I),XP(g)
- Vars
- Q(c);N_GUARD,XS(L)::S(D)
- B(e);N_GUARD,XP(E)::S(D)
- S(h);OGATE,XP(H)::QAR2(K),XS(h)
- S(h);OGATE,XR(I)::B(F),XS(h)
- S(j);OGATE,XP(J)::QAB(K),XS(j)
- Q(c);N_GUARD::S(D)
- Q(c);N_GUARD,P_PINR(M)::S(D)
- Refutation
- P(i);
- Try
- Actual
- S(L);P_PINP(g)
- Threat
- R1(M),XP(g)
- Vars
- Q(c);N_GUARD,XR(I)::S(D)
- B(e);N_GUARD,XP(E)::S(D)
- S(h);OGATE,XP(H)::QAR2(K),XS(h)
- S(h);N_GUARD,N_SPINP(g),XR(M)::B(F),XP(f)
- S(j);OGATE,XP(J)::QAB(K),XS(j)
- Q(c);N_GUARD,P_PINR(M)::S(D)
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).