MESON Chess Problem Database
Problem Display
PID: 11767 (3r4/NpN2R2/2Pk1rn1/B1p5/pPPP1p2/q7/3Q1Rn1/5bKB w - - 0 1)
Bakcsi, Gyorgy
2nd Prize, Stella Polaris, 1970-1971
#2
12 + 11
| 3753 | FIDE Album (1971-1973) | 1978 |
| 56 | The Problemist | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.bxc5#
- 1...Qb2
- 2.bxc5#
- 1...Qa1
- 2.bxc5#
- 1...Qa2
- 2.bxc5#
- 1...Qb3
- 2.bxc5#
- 1...Qc3
- 2.bxc5#
- 1...Qd3
- 2.bxc5#
- 1...Qe3
- 2.bxc5#
- 1...Qf3
- 2.bxc5#
- 1...Qg3
- 2.bxc5#
- 1...Qh3
- 2.bxc5#
- 1...Re6
- 2.Scb5#
- 1...Rd7
- 2.Rxd7#
- 1...Ra8
- 2.Rd7#
- 1...Rb8
- 2.Rd7#
- 1...Rc8
- 2.Rd7#
- 1...Re8
- 2.Rd7#
- 1...Rf8
- 2.Rd7#
- 1...Rg8
- 2.Rd7#
- 1...Rh8
- 2.Rd7#
- 1...Se1
- 2.Sab5#
- 1...Se3
- 2.Sab5#
- 1...S2h4
- 2.Sab5#
- 1...Se5
- 2.dxc5#
- 1...Se7
- 2.Rxf6#
- 1...cxb4
- 2.c5#
- 1...cxd4
- 2.Qxd4#
- 1...Qc1
- Tries
- 1.Sc8+?
- 1...Kxc6
- 2.b5#
- 1...Rxc8!
- 1...Kxc6
- 1.Qe1?
- threat
- 2.Scb5#
- 2.Rxf6#
- 2.dxc5#
- 1...Qxb4
- 2.Rxf6#
- 1...Rxf7
- 2.Scb5#
- 2.Qe6#
- 2.dxc5#
- 1...Bxc4
- 2.dxc5#
- 1...Sxe1
- 2.Sab5#
- 1...cxb4
- 2.Scb5#
- 2.Rxf6#
- 2.c5#
- 1...cxd4
- 2.Scb5#
- 2.Rxf6#
- 2.c5#
- 1...bxc6
- 2.dxc5#
- 1...Qe3
- 2.bxc5#
- 1...Qh3
- 2.Scb5#
- 2.bxc5#
- 2.dxc5#
- 1...Rf5
- 2.Scb5#
- 2.Qe6#
- 1...Re6
- 2.Scb5#
- 2.Qxe6#
- 2.dxc5#
- 1...Re8
- 2.Scb5#
- 2.Sxe8#
- 2.Rd7#
- 2.dxc5#
- 1...Rf8
- 2.Scb5#
- 2.Rd7#
- 2.dxc5#
- 1...Se3
- 2.Sab5#
- 1...Se5
- 2.Qxe5#
- 2.dxc5#
- 2.dxe5#
- 1...Sf8
- 2.Scb5#
- 2.Qe5#
- 2.Qe7#
- 2.dxc5#
- 1...b5
- 2.Scxb5#
- 2.Rxf6#
- 2.dxc5#
- 1...b6
- 2.Scb5#
- 1...Be2!
- threat
- 1.Qe2?
- threat
- 2.Scb5#
- 2.Rxf6#
- 2.dxc5#
- 1...Qxb4
- 2.Rxf6#
- 1...Rxf7
- 2.Scb5#
- 2.Qe6#
- 2.dxc5#
- 1...cxb4
- 2.Scb5#
- 2.Rxf6#
- 2.c5#
- 1...cxd4
- 2.Scb5#
- 2.Rxf6#
- 2.c5#
- 1...bxc6
- 2.dxc5#
- 1...Qe3
- 2.bxc5#
- 1...Qh3
- 2.Scb5#
- 2.bxc5#
- 2.dxc5#
- 1...Rf5
- 2.Scb5#
- 2.Qe6#
- 1...Re6
- 2.Scb5#
- 2.Qxe6#
- 2.dxc5#
- 1...Re8
- 2.Scb5#
- 2.Sxe8#
- 2.Rd7#
- 2.dxc5#
- 1...Rf8
- 2.Scb5#
- 2.Rd7#
- 2.dxc5#
- 1...Se3
- 2.Sab5#
- 1...Se5
- 2.Qxe5#
- 2.dxc5#
- 2.dxe5#
- 1...Sf8
- 2.Scb5#
- 2.Qe5#
- 2.Qe7#
- 2.dxc5#
- 1...b5
- 2.Scxb5#
- 2.Rxf6#
- 2.dxc5#
- 1...b6
- 2.Scb5#
- 1...Bxe2!
- threat
- 1.Sc8+?
- Keys
- 1.Qe3!
- threat
- 2.Scb5#
- 2.Rxf6#
- 2.dxc5#
- 1...Qxb4
- 2.Rxf6#
- 1...Qxe3
- 2.bxc5#
- 1...Rxf7
- 2.Scb5#
- 2.Qe6#
- 2.dxc5#
- 1...Bxc4
- 2.dxc5#
- 1...Sxe3
- 2.Sab5#
- 1...fxe3
- 2.R2xf6#
- 1...cxb4
- 2.Scb5#
- 2.Rxf6#
- 2.c5#
- 1...cxd4
- 2.Scb5#
- 2.Rxf6#
- 2.Qxd4#
- 2.c5#
- 1...bxc6
- 2.dxc5#
- 1...Rf5
- 2.Scb5#
- 2.Qe6#
- 1...Re6
- 2.Scb5#
- 2.Qxe6#
- 2.dxc5#
- 1...Re8
- 2.Scb5#
- 2.Sxe8#
- 2.Rd7#
- 2.dxc5#
- 1...Rf8
- 2.Scb5#
- 2.Rd7#
- 2.dxc5#
- 1...Se5
- 2.Qxe5#
- 2.dxc5#
- 2.dxe5#
- 1...Sf8
- 2.Scb5#
- 2.Qe5#
- 2.Qe7#
- 2.dxc5#
- 1...b5
- 2.Scxb5#
- 2.Rxf6#
- 2.dxc5#
- 1...b6
- 2.Scb5#
- threat
- 1.Qe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 25
- Sets
- Q(c);N_GUARD::P(E),XP(f)
- Q(c);N_GUARD,P_PINR(D)::P(E),XP(f)
- R(h);SBLOCK::S(K)
- R(k);N_GUARD::R1(L),XR(k)
- R(k);N_GUARD::R1(L)
- S(b);::S(J)
- S(i);SBLOCK::QAR(C)+P(G)DCHECK,XP(f)
- S(i);SBLOCK::R(L),XR(h)
- P(f);OGATE,XP(E)::P(F)
- P(f);OGATE,P_SPINP(f),XP(G)::QAR2(C),XP(f)
- Tries
- Try
- S(J);CHECK
- Vars
- K(g);P-FLIGHT,P_SPINS(b),XP(I)::P(E)
- Refutation
- R(k);XS(J)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- Q(c);XP(E)::R(L),XR(h)
- B(a);XP(F)::P(G),XP(f)
- S(b);XQ(C)::S(J)
- P(j);XP(I)::P(G),XP(f)
- Q(c);N_GUARD,P_PINR(D)::P(E),XP(f)
- S(b);::S(J)
- P(j);::S(K)
- Refutation
- B(a);
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- Q(c);XP(E)::R(L),XR(h)
- P(j);XP(I)::P(G),XP(f)
- Q(c);N_GUARD,P_PINR(D)::P(E),XP(f)
- S(b);::S(J)
- P(j);::S(K)
- Refutation
- B(a);XQ(C)
- Try
- Actual
- Q(C);
- Threat
- DUALS(3)
- Vars
- Q(c);XP(E)::R(L),XR(h)
- Q(c);N_GUARD,P_PINR(D),XQ(C)::P(E),XP(f)
- B(a);XP(F)::P(G),XP(f)
- S(b);XQ(C)::S(J)
- P(e);OGATE,XQ(C)::R(D),XR(h)
- P(j);XP(I)::P(G),XP(f)
- P(j);::S(K)
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).