MESON Chess Problem Database
Problem Display
PID: 18553 (2QN4/K2nNp2/3k1Pp1/p5p1/PpP3P1/1P1n1p2/3BbP2/3RR3 w - - 0 1)
Petrovic, Nenad
5th Prize, Sao Paulo Chess Club, 1956
#2
13 + 10
| 3976 | FIDE Album (1956-1958) | 1961 |
SOLUTION
- SOUND
- Sets
- 1...Bxd1
- 2.Sb7#
- 2.Sxf7#
- 2.Qc6#
- 1...Bf1
- 2.Sb7#
- 2.Sxf7#
- 2.Qc6#
- 1...Sc1
- 2.Bf4#
- 1...Sxe1
- 2.Bf4#
- 1...Sb2
- 2.Bf4#
- 1...Sxf2
- 2.Bf4#
- 1...Sf4
- 2.Bxf4#
- 1...S3c5
- 2.Bf4#
- 1...S3e5
- 2.Bxb4#
- 1...S7c5
- 2.Sxf7#
- 1...S7e5
- 2.Sb7#
- 1...Sb6
- 2.Sxf7#
- 1...Sb8
- 2.Sxf7#
- 1...Sf8
- 2.Sxf7#
- 1...Bxd1
- Tries
- 1.Sxg6?
- threat
- 2.Qc6#
- 1...S3e5
- 2.Bxb4#
- 1...S7e5
- 2.Sb7#
- 1...Sb8
- 2.Sb7#
- 2.Sxf7#
- 1...fxg6!
- threat
- 1.Sg8?
- 1...Bxd1
- 2.Sb7#
- 2.Sxf7#
- 2.Qc6#
- 1...Sxe1
- 2.Bf4#
- 1...Sxf2
- 2.Bf4#
- 1...Sxf6
- 2.Sxf7#
- 1...Bf1
- 2.Sb7#
- 2.Sxf7#
- 2.Qc6#
- 1...Sc1
- 2.Bf4#
- 1...Sb2
- 2.Bf4#
- 1...Sf4
- 2.Bxf4#
- 1...S3c5
- 2.Bf4#
- 1...S3e5
- 2.Bxb4#
- 1...S7c5
- 2.Sxf7#
- 1...S7e5
- 2.Sb7#
- 1...Sb6
- 2.Sxf7#
- 1...Sb8
- 2.Sxf7#
- 1...Sf8
- 2.Sxf7#
- 1...Ke5!
- 1...Bxd1
- 1.Bf4+?
- 1...Se5
- 2.Sb7#
- 2.Sxf7#
- 2.Qc6#
- 2.c5#
- 1...gxf4!
- 1...Se5
- 1.Rxe2?
- threat
- 2.Sb7#
- 2.Sxf7#
- 2.Qc6#
- 1...S3c5
- 2.Sxf7#
- 2.Bxb4#
- 2.Bf4#
- 2.Qc6#
- 1...S3e5
- 2.Bxb4#
- 2.Bf4#
- 1...S7c5
- 2.Sxf7#
- 2.Qc6#
- 1...S7e5
- 2.Sb7#
- 1...Sb8
- 2.Sb7#
- 2.Sxf7#
- 1...fxe2!
- threat
- 1.Qb8+?
- 1...Kc5
- 2.Be3#
- 1...Sxb8!
- 1...Kc5
- 1.c5+?
- 1...S3xc5
- 2.Bf4#
- 1...S7xc5
- 2.Sxf7#
- 1...Ke5!
- 1...S3xc5
- 1.Sxg6?
- Keys
- 1.Sec6!
- 1...Kc5
- 2.Sb7#
- 1...Bxd1
- 2.Sb7#
- 1...Sxe1
- 2.Bxb4#
- 1...Sxf2
- 2.Bxb4#
- 1...Sxf6
- 2.Sb7#
- 1...Bf1
- 2.Sb7#
- 1...Sc1
- 2.Bxb4#
- 1...Sb2
- 2.Bxb4#
- 1...Sf4
- 2.Bxb4#
- 1...S3c5
- 2.Bf4#
- 1...S3e5
- 2.Bxb4#
- 1...S7c5
- 2.Sxf7#
- 1...S7e5
- 2.Sb7#
- 1...Sb6
- 2.Sb7#
- 1...Sb8
- 2.Sb7#
- 1...Sf8
- 2.Sb7#
- 1...Kc5
- 1.Sec6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(b);::R(A)+B(C),DCHECK
- S(b);XR(B)::R(A)+B(C),DCHECK
- S(b);XP(D)::R(A)+B(C),DCHECK
- S(b);::R(A)+B(C),DCHECK,XS(b)
- S(b);SBLOCK::R(A)+B(C),DCHECK,XP(d)
- S(i);::S(M),XP(j)
- S(i);SBLOCK::S(M)
- Tries
- Try
- S(K);XP(h)
- Threat
- QAR1(L)
- Vars
- S(b);::R(A)+B(C),DCHECK,XP(d)
- S(i);::S(M)
- Refutation
- P(j);XS(K)
- Try
- S(K);
- Vars
- S(b);XR(B)::R(A)+B(C),DCHECK
- S(b);XP(D)::R(A)+B(C),DCHECK
- S(i);XP(I)::S(M),XP(j)
- S(b);::R(A)+B(C),DCHECK
- S(b);::R(A)+B(C),DCHECK,XS(b)
- S(b);SBLOCK::R(A)+B(C),DCHECK,XP(d)
- S(i);::S(M),XP(j)
- S(i);SBLOCK::S(M)
- Refutation
- K(g);P_SPINB(a),S_FLIGHT
- Try
- B(C);CHECK,P_PINS(b)
- Refutation
- P(f);XB(C)
- Try
- R(B);XB(a)
- Threat
- DUALS(3)
- Vars
- S(i);::S(M)
- Refutation
- P(c);XR(B)
- Try
- Q(L);CHECK
- Vars
- K(g);S_FLIGHT::B(C)
- Refutation
- S(i);XQ(L)
- Try
- P(G);CHECK
- Vars
- S(b);XP(G)::R(A)+B(C),DCHECK
- S(i);XP(G)::S(M),XP(j)
- Refutation
- K(g);P_SPINB(a),S_FLIGHT
- Try
- Actual
- S(K);
- Vars
- K(g);S_FLIGHT::S(M)
- B(a);XR(A)::S(M)
- S(b);XR(B)::R(A)+B(C),DCHECK,XP(d)
- S(b);XP(D)::R(A)+B(C),DCHECK,XP(d)
- S(i);XP(I)::S(M)
- B(a);::S(M)
- S(b);::R(A)+B(C),DCHECK,XP(d)
- S(b);SBLOCK::R(A)+B(C),DCHECK
- S(i);SBLOCK::S(M),XP(j)
- S(i);::S(M)
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).