MESON Chess Problem Database
Problem Display
PID: 287551 (5NK1/3pR3/2b1pp2/2BPkP2/2P3Qn/2n5/3N4/2rR1q2 w - - 0 1)
Craciun, Ovidiu
Problem Paradise, 2022
#2
10 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2026 |
SOLUTION
- SOUND
- Sets
- 1...Qxc4
- 2.Sxc4#
- 1...Qxf5
- 2.Qd4#
- 1...Bxd5
- 2.Sxd7#
- 1...Bb7
- 2.Sxd7#
- 1...Ba8
- 2.Sxd7#
- 1...Sb1
- 2.Qe4#
- 1...Sxd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sxd5
- 2.Qe4#
- 1...Sg2
- 2.Sg6#
- 1...Sf3
- 2.Sg6#
- 1...Sxf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...d6
- 2.Bd4#
- 2.Rxe6#
- 1...Qxc4
- Tries
- 1.Sf3+?
- 1...Sxf3
- 2.Sg6#
- 1...Qxf3!
- 1...Sxf3
- 1.Rxf1?
- threat
- 2.Qg3#
- 2.Qd4#
- 2.Qf4#
- 1...Sxd5
- 2.Qd4#
- 2.Qe4#
- 1...Sxf5
- 2.Sf3#
- 2.Sg6#
- 2.Rxf5#
- 2.Qxf5#
- 2.Qf4#
- 1...Se2
- 2.Qxe2#
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 2.Qf4#
- 1...Sb5
- 2.Qe2#
- 2.Qg3#
- 2.Qe4#
- 2.Qf4#
- 1...Sg2
- 2.Sf3#
- 2.Sg6#
- 2.Qd4#
- 1...Sf3
- 2.Sxf3#
- 2.Sg6#
- 1...Sg6
- 2.Sf3#
- 2.Sxg6#
- 2.Qd4#
- 1...Rxf1!
- threat
- 1.Rxd7?
- threat
- 2.Bd4#
- 2.Bd6#
- 1...Qxc4
- 2.Sxc4#
- 1...Bxd7
- 2.Sxd7#
- 1...Sxf5
- 2.Sg6#
- 1...Qd3
- 2.Bd6#
- 1...Qg1
- 2.Bd6#
- 1...Qf2
- 2.Bd6#
- 1...Se2
- 2.Bd6#
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sf3
- 2.Sg6#
- 2.Bd6#
- 1...Qf4!
- threat
- 1.dxc6?
- threat
- 2.Sxd7#
- 1...Qxc4
- 2.Sxc4#
- 1...dxc6
- 2.Sd7#
- 2.Rxe6#
- 1...d5
- 2.Sd7#
- 2.Rxe6#
- 1...d6
- 2.Sd7#
- 2.Bd4#
- 2.Rxe6#
- 1...Qd3!
- threat
- 1.dxe6?
- threat
- 2.exd7#
- 1...Qxc4
- 2.Sxc4#
- 1...Qxf5
- 2.Qd4#
- 1...Sxf5
- 2.Sg6#
- 1...dxe6
- 2.Rxe6#
- 1...Bd5
- 2.Sxd7#
- 1...Sd5
- 2.Qe4#
- 1...Sg6
- 2.Sxg6#
- 1...d6
- 2.Bd4#
- 1...d5!
- threat
- 1.Sf3+?
- Keys
- 1.fxe6!
- threat
- 2.exd7#
- 1...Qxc4
- 2.Sxc4#
- 1...Bxd5
- 2.Sxd7#
- 1...Sxd5
- 2.Qe4#
- 1...dxe6
- 2.Rxe6#
- 1...f5
- 2.Qd4#
- 1...Qf5
- 2.Qd4#
- 1...Sf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...d6
- 2.Bd4#
- threat
- 1.fxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- Q(b);XP(C)::S(B),XQ(b)
- Q(b);SBLOCK,XP(G)::QAB1(D)
- B(f);N_GUARD,XP(F)::S(I),XP(i)
- B(f);N_GUARD::S(I),XP(i)
- S(c);N_GUARD::QAR1(D)
- S(c);N_GUARD,XR(A)::QAR1(D)
- S(c);N_GUARD::QAR1(D),XS(c)
- S(c);N_GUARD,XP(F)::QAR1(D)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD,XP(G)::S(I)
- S(d);N_GUARD::S(I),XS(d)
- Tries
- Try
- S(B);CHECK
- Vars
- S(d);XS(B)::S(I)
- Refutation
- Q(b);XS(B)
- Try
- R(A);XQ(b)
- Threat
- DUALS(3)
- Refutation
- R(a);XR(A)
- Try
- R(H);N_PINP(g),XP(i)
- Threat
- DUALS(2)
- Vars
- Q(b);XP(C)::S(B),XQ(b)
- B(f);XR(H)::S(I),XB(f)
- S(d);N_GUARD,XP(G)::S(I)
- Q(b);::B(E)
- Q(b);P_PINQ(D)::B(E)
- S(c);N_GUARD::QAR1(D),XS(c)
- S(c);N_GUARD::QAR1(D)
- Refutation
- Q(b);
- Try
- P(F);XB(f)
- Threat
- S(I),XP(i)
- Vars
- Q(b);XP(C)::S(B),XQ(b)
- Refutation
- Q(b);
- Try
- P(F);XP(g)
- Threat
- R(H)+P(F),XP(i)
- Vars
- Q(b);P_PINP(F),XP(C)::S(B),XQ(b)
- Q(b);SBLOCK,XP(G)::QAB1(D)
- S(d);N_GUARD,XP(G)::S(I)
- P(i);OGATE,P_SPINP(i),XP(F)::R1(H),XP(i)
- B(f);N_GUARD,P_PINP(F)::S(I),XP(i)
- S(c);N_GUARD,S_CUTB(f)::QAR1(D)
- S(d);N_GUARD::S(I),XS(d)
- P(i);SBLOCK::B(E)
- Refutation
- P(i);
- Try
- Actual
- P(G);XP(g)
- Threat
- R(H)+P(G),XP(i)
- Vars
- Q(b);XP(C)::S(B),XQ(b)
- B(f);N_GUARD,P_PINP(G),XP(F)::S(I),XP(i)
- S(c);N_GUARD,XP(F)::QAR1(D)
- P(i);OGATE,P_SPINP(i),XP(G)::R1(H),XP(i)
- P(h);SBLOCK::QAB1(D)
- Q(b);SBLOCK::QAB1(D)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- P(i);SBLOCK::B(E)
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).