MESON Chess Problem Database
Problem Display
PID: 122132 (4b3/B2BN1b1/4qrN1/p3QP2/1Pk2P2/P6R/n2PK2n/4R3 w - - 0 1)
Pieprzyk, Rudolf
Sachove umeni (Ceskoslovensky sach), 1978
#2
13 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Qxd5#
- 1...Qxf5
- 2.Qd4#
- 1...Qxd7
- 2.Qc5#
- 1...Qf7
- 2.Qd4#
- 2.Qe4#
- 2.Qb5#
- 2.Qc5#
- 1...Qg8
- 2.Qd4#
- 2.Qe4#
- 2.Qb5#
- 2.Qc5#
- 1...Qxe5+
- 2.Sxe5#
- 1...Qa6
- 2.Qd4#
- 2.Qe4#
- 2.Qc5#
- 2.Qd5#
- 1...Qb6
- 2.Qd5#
- 1...Qd6
- 2.Qb5#
- 1...Rxf5
- 2.Bxe6#
- 1...Rf7
- 2.Bxe6#
- 2.Qxe6#
- 1...Rf8
- 2.Bxe6#
- 2.Qxe6#
- 1...Bxg6
- 2.Bb5#
- 1...Bf7
- 2.Bb5#
- 1...Sc1+
- 2.Rxc1#
- 1...Sc3+
- 2.Rxc3#
- 1...Sxb4
- 2.Rc3#
- 1...Qd5
- Tries
- 1.Kd1?
- threat
- 2.Re4#
- 2.Qd4#
- 2.Qb5#
- 2.Qc5#
- 1...Sc3+
- 2.Rxc3#
- 2.Qxc3#
- 1...Qxf5
- 2.Qd4#
- 1...Qxd7
- 2.Qc5#
- 1...Qxe5
- 2.Sxe5#
- 1...Qxe7
- 2.Re4#
- 2.Qd4#
- 2.Qb5#
- 1...Rxf5
- 2.Bxe6#
- 2.Re4#
- 1...Rxg6
- 2.Re4#
- 2.Qb5#
- 2.Qc5#
- 1...Bxd7
- 2.Re4#
- 2.Qc5#
- 1...Qd5
- 2.Qxd5#
- 1...Qa6
- 2.Re4#
- 2.Qd4#
- 2.Qe2#
- 2.Qe4#
- 2.Qc5#
- 2.Qd5#
- 1...Qb6
- 2.Qd5#
- 1...Qc6
- 2.Qe2#
- 1...Qd6
- 2.Qb5#
- 1...Rf7
- 2.Bxe6#
- 2.Re4#
- 2.Qb5#
- 2.Qc5#
- 2.Qxe6#
- 1...Rf8
- 2.Bxe6#
- 2.Re4#
- 2.Qb5#
- 2.Qc5#
- 2.Qxe6#
- 1...Sf3!
- threat
- 1.Ba4?
- threat
- 2.Bb3#
- 2.d3#
- 1...Qxe5+
- 2.Sxe5#
- 1...Sc1+
- 2.Rxc1#
- 1...Sc3+
- 2.Rxc3#
- 1...Qxf5
- 2.Bb3#
- 2.Qd4#
- 1...Sxb4
- 2.Bb3#
- 2.Rc3#
- 1...Qd5
- 2.Qxd5#
- 1...Qd7
- 2.Bb3#
- 2.Qc5#
- 1...Qd6
- 2.Bb3#
- 1...Sf3
- 2.d3#
- 1...Bxa4!
- threat
- 1.Rc1+?
- 1...Sc3+
- 2.Rcxc3#
- 2.Rhxc3#
- 1...Sxc1+!
- 1...Sc3+
- 1.Re3?
- threat
- 2.Qd4#
- 2.Qb5#
- 2.Qc5#
- 1...Sc1+
- 2.Rxc1#
- 1...Sc3+
- 2.Rxc3#
- 2.Qxc3#
- 1...Qxf5
- 2.Qd4#
- 1...Qxd7
- 2.Qc5#
- 1...Qxe5
- 2.Sxe5#
- 1...Qxe7
- 2.Qd4#
- 2.Qb5#
- 1...Rxf5
- 2.Bxe6#
- 1...Rxg6
- 2.Qb5#
- 2.Qc5#
- 1...Bxd7
- 2.Qc5#
- 1...Qd5
- 2.Qxd5#
- 1...Qa6
- 2.Qd4#
- 2.Qe4#
- 2.Qc5#
- 2.Qd5#
- 1...Qb6
- 2.Qd5#
- 1...Qd6
- 2.Qb5#
- 1...Rf7
- 2.Bxe6#
- 2.Qb5#
- 2.Qc5#
- 2.Qxe6#
- 1...Rf8
- 2.Bxe6#
- 2.Qb5#
- 2.Qc5#
- 2.Qxe6#
- 1...Sf3
- 2.Qb5#
- 2.Qc5#
- 1...Qc6!
- threat
- 1.fxe6?
- threat
- 2.Qd4#
- 2.Qc7#
- 2.Qe4#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Sc1+
- 2.Rxc1#
- 1...Sc3+
- 2.Rxc3#
- 2.Qxc3#
- 1...Rxf4
- 2.Qc7#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Rxe6
- 2.Bxe6#
- 2.Qxe6#
- 1...Rxg6
- 2.Qc7#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Bxg6
- 2.Bb5#
- 2.Qd4#
- 2.Qc7#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Bxd7
- 2.Qc5#
- 2.Qd5#
- 1...Sxb4
- 2.Rc3#
- 2.Qc3#
- 2.Qd4#
- 2.Qe4#
- 2.Qb5#
- 2.Qc5#
- 1...Sf3
- 2.Qd5#
- 1...Rf7
- 2.Qc7#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Rf8
- 2.Qc7#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Rf5!
- threat
- 1.Kd1?
- Keys
- 1.Rb1!
- threat
- 2.d3#
- 1...Qxe5+
- 2.Sxe5#
- 1...Sc1+
- 2.Rxc1#
- 1...Sc3+
- 2.Rxc3#
- 1...Qxf5
- 2.Qd4#
- 1...Qxd7
- 2.Qc5#
- 1...Sxb4
- 2.Rc3#
- 1...Qd5
- 2.Qxd5#
- 1...Qd6
- 2.Qb5#
- threat
- 1.Rb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- Q(e);N_PINQ(H)::QAB1(H),XQ(e)
- Q(e);N_PINQ(H),XP(I)::QAR1(H)
- Q(e);N_PINQ(H),XB(L)::QAR1(H)
- Q(e);CHECK,XQ(H)::S(J),XQ(e)
- Q(e);N_PINQ(H)::QAB1(H)
- R(f);N_GUARD,XP(I)::B(L),XQ(e)
- B(h);N_GUARD,XS(J)::B(L)
- B(h);N_GUARD::B(L)
- S(a);CHECK,N_GUARD::R(A),XS(a)
- S(a);CHECK,N_GUARD::R1(E),XS(a)
- S(a);N_GUARD,XP(F)::R1(E)
- Tries
- Try
- K(C);N_SPINQ(H),S_FLIGHT
- Threat
- DUALS(4)
- Vars
- Q(e);XP(I)::QAR1(H)
- Q(e);P_PINP(B),XB(L)::QAR1(H)
- Q(e);XQ(H)::S(J),XQ(e)
- Q(e);N_GUARD,P_PINP(B)::QAB1(H),XQ(e)
- Q(e);N_GUARD::QAB1(H)
- Q(e);N_GUARD::QAB(H)
- Q(e);P_PINP(B)::QAB1(H)
- Refutation
- S(b);
- Try
- B(L);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,XQ(H)::S(J),XQ(e)
- S(a);CHECK,N_GUARD::R(A),XS(a)
- S(a);CHECK,N_GUARD::R1(E),XS(a)
- Q(e);N_PINQ(H)::QAB1(H),XQ(e)
- Q(e);N_PINQ(H)::B(L)
- S(b);::P(B)
- Refutation
- B(h);XB(L)
- Try
- R(A);CHECK
- Refutation
- S(a);CHECK,XR(A)
- Try
- R(E);N_SPINQ(H)
- Threat
- DUALS(3)
- Vars
- S(a);CHECK,N_GUARD::R(A),XS(a)
- Q(e);XP(I)::QAR1(H)
- Q(e);XB(L)::QAR1(H)
- Q(e);P_PINR(E),XQ(H)::S(J),XQ(e)
- R(f);N_GUARD,XP(I)::B(L),XQ(e)
- B(h);XB(L)::QAR1(H)
- Q(e);N_GUARD::QAB1(H),XQ(e)
- Q(e);N_GUARD::QAB1(H)
- Q(e);::QAB1(H)
- Refutation
- Q(e);
- Try
- P(I);N_SPINQ(H),XQ(e)
- Threat
- DUALS(6)
- Vars
- S(a);CHECK,N_GUARD::R(A),XS(a)
- S(b);::QAB1(H)
- Refutation
- R(f);
- Try
- Actual
- R(A);
- Threat
- P(B)
- Vars
- Q(e);CHECK,XQ(H)::S(J),XQ(e)
- S(a);CHECK,N_GUARD::R(A),XS(a)
- S(a);CHECK,N_GUARD::R1(E),XS(a)
- Q(e);N_PINQ(H),XP(I)::QAR1(H)
- Q(e);N_PINQ(H),XB(L)::QAR1(H)
- S(a);N_GUARD,XP(F)::R1(E)
- Q(e);N_PINQ(H)::QAB1(H),XQ(e)
- Q(e);N_PINQ(H)::QAB1(H)
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).