MESON Chess Problem Database
Problem Display
PID: 237027 (1B1q1b2/6pK/4p3/1N1P1R2/1P2kpPp/Q2n1N2/3PnPp1/3Br1r1 w - - 0 1)
Pituk, Alexander
Szachy, 1976
#2
12 + 12
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kxf3
- 2.Rxf4#
- 1...Qa5
- 2.Sg5#
- 1...Qg5
- 2.Sxg5#
- 1...Qb6
- 2.Sg5#
- 1...Qc7
- 2.Sg5#
- 1...Qxd5
- 2.Sg5#
- 1...Qd6
- 2.Sg5#
- 1...Qd7
- 2.Sg5#
- 1...Qxb8
- 2.Sg5#
- 1...Qc8
- 2.Sg5#
- 1...Qe8
- 2.Sg5#
- 1...Sec1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sg3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Sdc1
- 2.Re5#
- 1...Sb2
- 2.Re5#
- 1...Sxf2
- 2.Re5#
- 1...Sxb4
- 2.Re5#
- 1...Sc5
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Kxf3
- Tries
- 1.Sxe1?
- threat
- 2.Qxd3#
- 2.f3#
- 1...Qxd5
- 2.f3#
- 1...Sxe1
- 2.Re5#
- 1...Sxf2
- 2.Re5#
- 2.Qf3#
- 1...Sxb4
- 2.Re5#
- 2.Qf3#
- 2.f3#
- 1...exf5
- 2.Qxd3#
- 1...Se5
- 2.Rxe5#
- 1...e5
- 2.Qxd3#
- 1...Rf1
- 2.Qxd3#
- 1...Sec1
- 2.Bf3#
- 2.f3#
- 1...Sc3
- 2.Bf3#
- 2.f3#
- 1...Sd4
- 2.Sc3#
- 2.Qxd3#
- 1...Sdc1
- 2.Re5#
- 2.Qf3#
- 2.f3#
- 1...Sb2
- 2.Re5#
- 2.Qf3#
- 2.f3#
- 1...Sc5
- 2.Re5#
- 2.Qf3#
- 2.f3#
- 1...f3
- 2.Qxd3#
- 1...Rxe1!
- threat
- 1.Bxe2?
- threat
- 2.Sc3#
- 2.Qxd3#
- 1...Qxd5
- 2.Sg5#
- 2.Sc3#
- 1...Bxb4
- 2.Qxd3#
- 1...Sxf2
- 2.Sc3#
- 2.Re5#
- 1...Sxb4
- 2.Sc3#
- 2.Re5#
- 1...Se5
- 2.Sc3#
- 2.Rxe5#
- 1...Qf6
- 2.Qxd3#
- 1...Qc7
- 2.Sg5#
- 2.Qxd3#
- 1...Qc8
- 2.Sg5#
- 2.Qxd3#
- 1...Rc1
- 2.Qxd3#
- 1...Sc1
- 2.Sc3#
- 2.Re5#
- 1...Sb2
- 2.Sc3#
- 2.Re5#
- 1...Sc5
- 2.Sc3#
- 2.Re5#
- 1...Rxe2!
- threat
- 1.Rxf4+?
- 1...Kxd5
- 2.Qa8#
- 1...Sexf4
- 2.Sc3#
- 1...Sdxf4!
- 1...Kxd5
- 1.Sxe1?
- Keys
- 1.Se5!
- threat
- 2.Qxd3#
- 1...Kxd5
- 2.Qa8#
- 1...Qxd5
- 2.f3#
- 1...Sxf2
- 2.Qf3#
- 1...Sxb4
- 2.Qf3#
- 1...Sxe5
- 2.Rxe5#
- 1...Sec1
- 2.Bf3#
- 1...Sc3
- 2.Bf3#
- 1...Sd4
- 2.Sc3#
- 1...Sdc1
- 2.Qf3#
- 1...Sb2
- 2.Qf3#
- 1...Sc5
- 2.Qf3#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 8
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- K(f);P_SPINP(g),P_SPINS(c),S_FLIGHT,XS(E)::R1(J),XP(g)
- Q(k);N_GUARD::S(E)
- Q(k);N_GUARD::S(E),XQ(k)
- Q(k);N_GUARD,XP(I)::S(E)
- Q(k);N_GUARD,XB(L)::S(E)
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- S(e);N_GUARD::R1(J)
- S(e);N_GUARD,XP(C)::R1(J)
- S(e);N_GUARD,XP(F)::R1(J)
- S(e);N_GUARD::R1(J),XS(e)
- Tries
- Try
- S(E);XR(a)
- Threat
- DUALS(2)
- Vars
- Q(k);XP(I)::P(C)
- S(e);N_GUARD,XS(E)::R1(J)
- P(i);XR(J)::QAB1(D),XS(e)
- S(e);N_GUARD::R1(J),XS(e)
- P(i);::QAB1(D),XS(e)
- R(b);::QAB1(D),XS(e)
- P(g);::QAB1(D),XS(e)
- Refutation
- R(b);XS(E)
- Try
- B(A);XS(c)
- Threat
- DUALS(2)
- Vars
- B(l);XP(F)::QAB1(D),XS(e)
- Q(k);::QAB1(D),XS(e)
- R(a);::QAB1(D),XS(e)
- Refutation
- R(a);XB(A)
- Try
- R(J);CHECK,XP(g)
- Vars
- K(f);S_FLIGHT,XP(I)::QAB(D)
- S(c);XR(J)::S(H)
- Refutation
- S(e);XR(J)
- Try
- Actual
- S(E);
- Threat
- QAB1(D),XS(e)
- Vars
- K(f);OGATEB,S_FLIGHT,XP(I)::QAB(D)
- Q(k);SBLOCK,XP(I)::P(C)
- S(e);OGATE,XP(C)::QAB1(D)
- S(e);OGATE,XP(F)::QAB1(D)
- S(e);OGATE,XS(E)::R1(J),XS(e)
- S(c);OGATE::B(A)
- S(c);N_GUARD,SBLOCK::S(H)
- S(e);OGATE::QAB1(D)
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).