MESON Chess Problem Database
Problem Display
PID: 18669 (8/1p2p3/1P2Bp2/1Q1P1Pp1/2N1PnR1/Rp1k1N2/p3pP2/Kbn1B3 w - - 0 1)
Preziosi, Bruno
1st Prize, Probleemblad, 1957
#2
13 + 11
| 3976 | FIDE Album (1956-1958) | 1961 |
| 3147 | Chess Problems: Introduction to an Art | 1963 |
| 133 | The Problemist Supplement | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Kc2
- 2.Se3#
- 1...Kxe4
- 2.Scd2#
- 1...Bc2
- 2.Sd6#
- 1...Sg2
- 2.Se3#
- 1...Sh3
- 2.Se3#
- 1...Sxd5
- 2.Se3#
- 1...Sh5
- 2.Se3#
- 1...Sxe6
- 2.Se3#
- 1...Sg6
- 2.Se3#
- 1...Kc2
- Tries
- 1.Sb2+?
- 1...Kc2
- 2.Sd4#
- 2.Qc4#
- 2.Qc5#
- 1...Kxe4!
- 1...Kc2
- 1.Scd2+?
- 1...Kc3
- 2.Qc4#
- 1...Kc2!
- 1...Kc3
- 1.Sce5+?
- 1...Kxe4
- 2.Ra4#
- 2.Qa4#
- 2.Qc4#
- 2.Qb4#
- 1...Kc2!
- 1...Kxe4
- 1.Rxb3+?
- 1...Kc2
- 2.Se3#
- 1...Kxe4
- 2.Scd2#
- 2.Re3#
- 1...Sxb3+!
- 1...Kc2
- 1.Ra4?
- threat
- 2.Sa3#
- 2.Se3#
- 1...Kc2
- 2.Se3#
- 1...Kxe4
- 2.Scd2#
- 2.Sce5#
- 1...b2+!
- threat
- 1.Ra5?
- 1...Kc2
- 2.Se3#
- 1...Kxe4
- 2.Scd2#
- 1...Sxd5
- 2.Sa3#
- 2.Se3#
- 1...Sxe6
- 2.Sa3#
- 2.Se3#
- 1...Bc2
- 2.Sd6#
- 1...Sg2
- 2.Sa3#
- 2.Se3#
- 1...Sh3
- 2.Sa3#
- 2.Se3#
- 1...Sh5
- 2.Sa3#
- 2.Se3#
- 1...Sg6
- 2.Sa3#
- 2.Se3#
- 1...b2+!
- 1...Kc2
- 1.Ra7?
- 1...Kc2
- 2.Se3#
- 1...Kxe4
- 2.Scd2#
- 1...Sxd5
- 2.Sa3#
- 2.Se3#
- 1...Sxe6
- 2.Sa3#
- 2.Se3#
- 1...Bc2
- 2.Sd6#
- 1...Sg2
- 2.Sa3#
- 2.Se3#
- 1...Sh3
- 2.Sa3#
- 2.Se3#
- 1...Sh5
- 2.Sa3#
- 2.Se3#
- 1...Sg6
- 2.Sa3#
- 2.Se3#
- 1...b2+!
- 1...Kc2
- 1.Ra8?
- 1...Kc2
- 2.Se3#
- 1...Kxe4
- 2.Scd2#
- 1...Sxd5
- 2.Sa3#
- 2.Se3#
- 1...Sxe6
- 2.Sa3#
- 2.Se3#
- 1...Bc2
- 2.Sd6#
- 1...Sg2
- 2.Sa3#
- 2.Se3#
- 1...Sh3
- 2.Sa3#
- 2.Se3#
- 1...Sh5
- 2.Sa3#
- 2.Se3#
- 1...Sg6
- 2.Sa3#
- 2.Se3#
- 1...b2+!
- 1...Kc2
- 1.Rxf4?
- threat
- 2.Se3#
- 1...Kc2
- 2.Se3#
- 1...gxf4!
- threat
- 1.Qxb3+?
- 1...Kxe4
- 2.Scd2#
- 2.Qe3#
- 1...Sxb3+!
- 1...Kxe4
- 1.Qb4?
- 1...Kc2
- 2.Qd2#
- 1...Kxe4
- 2.Sce5#
- 1...Sxe6
- 2.Qc3#
- 1...Bc2
- 2.Sb2#
- 1...Sg2
- 2.Qc3#
- 1...Sh3
- 2.Qc3#
- 1...Sh5
- 2.Qc3#
- 1...Sg6
- 2.Qc3#
- 1...Sxd5!
- 1...Kc2
- 1.e5?
- 1...Kc2
- 2.Se3#
- 1...Ke4
- 2.Scd2#
- 1...Sxd5
- 2.Se3#
- 1...Sxe6
- 2.Se3#
- 1...Bc2
- 2.Sd6#
- 1...Sg2
- 2.Se3#
- 1...Sh3
- 2.Se3#
- 1...Sh5
- 2.Se3#
- 1...Sg6
- 2.Se3#
- 1...fxe5!
- 1...Kc2
- 1.Sb2+?
- Keys
- 1.Qc5!
- 1...Kc2
- 2.Sb2#
- 1...Kxe4
- 2.Qe3#
- 1...Sxd5
- 2.Sb2#
- 1...Sxe6
- 2.Sb2#
- 1...Bc2
- 2.Qd4#
- 1...Sg2
- 2.Sb2#
- 1...Sh3
- 2.Sb2#
- 1...Sh5
- 2.Sb2#
- 1...Sg6
- 2.Sb2#
- 1...Kc2
- 1.Qc5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(f);N_SPINP(e),S_FLIGHT::S(F)
- K(f);N_SPINP(e),P_SPINS(g),S_FLIGHT,XP(G)::S(F)
- B(a);SBLOCK::QAB(I)+S(F)
- S(g);::QAB(I)+S(F)
- S(g);XP(J)::QAB(I)+S(F)
- S(g);XB(M)::QAB(I)+S(F)
- Tries
- Try
- S(F);CHECK
- Refutation
- K(f);N_SPINP(e),P_SPINS(g),S_FLIGHT,XP(G)
- Try
- S(F);CHECK
- Vars
- K(f);P-FLIGHT::QAR1(I)
- Refutation
- K(f);N_SPINP(e),S_FLIGHT
- Try
- S(F);CHECK
- Refutation
- K(f);N_SPINP(e),S_FLIGHT
- Try
- R(D);CHECK,XP(e)
- Vars
- K(f);S_FLIGHT::S(F)
- Refutation
- S(b);CHECK,XR(D)
- Try
- R(D);N_PINP(e)
- Threat
- DUALS(2)
- Vars
- K(f);S_FLIGHT::S(F)
- Refutation
- P(e);CHECK
- Try
- R(D);N_PINP(e)
- Vars
- K(f);S_FLIGHT::S(F)
- K(f);P_SPINS(g),S_FLIGHT,XP(G)::S(F)
- B(a);SBLOCK::QAB(I)+S(F)
- Refutation
- P(e);CHECK
- Try
- R(D);N_PINP(e)
- Vars
- K(f);S_FLIGHT::S(F)
- K(f);P_SPINS(g),S_FLIGHT,XP(G)::S(F)
- B(a);SBLOCK::QAB(I)+S(F)
- Refutation
- P(e);CHECK
- Try
- R(D);N_PINP(e)
- Vars
- K(f);S_FLIGHT::S(F)
- K(f);P_SPINS(g),S_FLIGHT,XP(G)::S(F)
- B(a);SBLOCK::QAB(I)+S(F)
- Refutation
- P(e);CHECK
- Try
- R(H);XS(g)
- Threat
- QAB(I)+S(F)
- Vars
- K(f);N_SPINP(e),S_FLIGHT::S(F)
- Refutation
- P(h);XR(H)
- Try
- Q(I);CHECK,XP(e)
- Refutation
- S(b);CHECK,P_SPINS(b),XQ(I)
- Try
- Q(I);
- Vars
- K(f);N_SPINP(e),S_FLIGHT::QAR1(I)
- K(f);N_SPINP(e),P_SPINS(g),S_FLIGHT,XP(G)::QAR(I)+S(F)
- S(g);XB(M)::QAR1(I)
- B(a);SBLOCK::S(F)
- S(g);::QAR1(I)
- Refutation
- S(g);XP(J)
- Try
- P(G);
- Vars
- K(f);N_SPINP(e),S_FLIGHT::S(F)
- K(f);N_SPINP(e),P_SPINS(g),S_FLIGHT::S(F)
- S(g);XP(J)::QAB(I)+S(F)
- S(g);XB(M)::QAB(I)+S(F)
- B(a);SBLOCK::QAB(I)+S(F)
- S(g);::QAB(I)+S(F)
- Refutation
- P(i);XP(G)
- Try
- Actual
- Q(I);
- Vars
- K(f);N_SPINP(e),S_FLIGHT::QAR(I)+S(F)
- K(f);N_SPINP(e),P_SPINS(g),S_FLIGHT,XP(G)::QAR1(I)
- S(g);XP(J)::S(F)
- S(g);XB(M)::S(F)
- B(a);SBLOCK::QAR1(I)
- S(g);::S(F)
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).