MESON Chess Problem Database
Problem Display
PID: 198739 (3K4/Q2np3/4p3/3PP3/Ppk1q1NR/1N6/2BP4/2R1r3 w - - 0 1)
Mari, Alberto
1st HM., Hampshire Telegraph and Post, 1921
#2
11 + 7
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Se3#
- 2.Qd4#
- 1...Qg2
- 2.Se3#
- 2.Qd4#
- 1...Qd3
- 2.Se3#
- 1...Qf3
- 2.Se3#
- 2.Qd4#
- 1...Qxd5
- 2.Se3#
- 1...Qf5
- 2.Se3#
- 2.Qd4#
- 1...Qg6
- 2.Se3#
- 2.Qd4#
- 1...Qh7
- 2.Se3#
- 2.Qd4#
- 1...Qe2
- 2.Se3#
- 2.Qd4#
- 1...Qe3
- 2.Sxe3#
- 1...Qd4
- 2.Qxd4#
- 1...Qxe5
- 2.Se3#
- 1...Rxc1
- 2.Se3#
- 1...Rd1
- 2.Se3#
- 1...Rf1
- 2.Se3#
- 1...Rg1
- 2.Se3#
- 1...Rh1
- 2.Se3#
- 1...Re3
- 2.Sxe3#
- 1...Sc5
- 2.Qxc5#
- 1...Sxe5
- 2.Qc5#
- 1...Sf6
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sf8
- 2.Qc5#
- 1...exd5
- 2.Sa5#
- 2.Qa6#
- 1...Qh1
- Tries
- 1.Sf6?
- threat
- 2.Sa5#
- 2.Qa6#
- 1...Sxf6
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sb6
- 2.Qa6#
- 2.Qc7#
- 1...Sb8
- 2.Sa5#
- 2.Qc5#
- 1...exf6!
- threat
- 1.Bd1+?
- 1...Kd3
- 2.Sf2#
- 1...Kxd5
- 2.Qb7#
- 2.Qxd7#
- 2.Qa8#
- 1...Qc2!
- 1...Kd3
- 1.Bxe4+?
- 1...Rxc1
- 2.Sa5#
- 1...Kxb3!
- 1...Rxc1
- 1.Qa5?
- threat
- 2.Qb5#
- 1...Qxd5
- 2.Se3#
- 1...Sc5
- 2.Qxc5#
- 1...Qxc2!
- threat
- 1.Qc7+?
- 1...Sc5
- 2.Qxc5#
- 1...Kxd5!
- 1...Sc5
- 1.Qxd7?
- threat
- 2.Qb5#
- 2.Qc6#
- 1...Qxd5
- 2.Se3#
- 1...Qe3
- 2.Sxe3#
- 2.Qb5#
- 1...Qd4
- 2.Qb5#
- 1...Qxc2!
- threat
- 1.Sf6?
- Keys
- 1.Qe3!
- 1...Kxd5
- 2.Bxe4#
- 1...Qxc2
- 2.Sf6#
- 1...Qxd5
- 2.Bd1#
- 1...Qxe3
- 2.Sxe3#
- 1...Qxg4
- 2.Qd3#
- 1...Qxe5
- 2.Qd3#
- 1...Rxc1
- 2.Qxe4#
- 1...Rxe3
- 2.Sxe3#
- 1...Sxe5
- 2.Qc5#
- 1...exd5
- 2.Sa5#
- 1...Qh1
- 2.Qd4#
- 2.Qd3#
- 1...Qg2
- 2.Qd4#
- 2.Qd3#
- 1...Qd3
- 2.Qxd3#
- 1...Qf3
- 2.Qd4#
- 1...Qf5
- 2.Qd4#
- 1...Qg6
- 2.Qd4#
- 1...Qh7
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 1...Qf4
- 2.Qd3#
- 1...Rd1
- 2.Qxe4#
- 1...Rf1
- 2.Qxe4#
- 1...Rg1
- 2.Qxe4#
- 1...Rh1
- 2.Qxe4#
- 1...Re2
- 2.Bxe4#
- 1...Sc5
- 2.Qxc5#
- 1...Sb6
- 2.Qc5#
- 1...Sf6
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sf8
- 2.Qc5#
- 1...Kxd5
- 1.Qe3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- Q(d);::R(G)+S(F),DCHECK
- Q(d);XP(H)::R(G)+S(F),DCHECK
- Q(d);::R(G)+S(F),DCHECK,XQ(d)
- Q(d);N_GUARD::QAR1(J),XQ(d)
- Q(d);XP(I)::R(G)+S(F),DCHECK
- R(a);N_GUARD,XR(A)::S(F)
- R(a);N_GUARD::S(F)
- R(a);N_GUARD::S(F),XR(a)
- S(f);N_GUARD::QAR1(J),XS(f)
- S(f);N_GUARD,XP(I)::QAR1(J)
- S(f);N_GUARD::QAR1(J)
- Tries
- Try
- S(F);P_PINQ(d)
- Threat
- DUALS(2)
- Vars
- S(f);N_GUARD,XS(F)::QAR1(J)
- S(f);N_GUARD::QAR1(J),XS(f)
- Refutation
- P(g);XS(F)
- Try
- B(B);CHECK
- Vars
- K(c);S_FLIGHT::S(F)
- Refutation
- Q(d);P_SPINQ(d)
- Try
- B(B);CHECK,XQ(d)
- Vars
- R(a);XR(A)::S(D)
- Refutation
- K(c);S_FLIGHT,XS(D)
- Try
- Q(J);
- Threat
- QAB1(J)
- Vars
- Q(d);XP(H)::R(G)+S(F),DCHECK
- S(f);N_GUARD::QAR1(J),XS(f)
- Refutation
- Q(d);P_SPINQ(d),XB(B)
- Try
- Q(J);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAR1(J),XS(f)
- Refutation
- K(c);S_FLIGHT,XP(H)
- Try
- Q(J);XS(f)
- Threat
- DUALS(2)
- Vars
- Q(d);P_PINQ(J),XP(H)::R(G)+S(F),DCHECK
- Q(d);::QAB1(J)
- Refutation
- Q(d);P_SPINQ(d),XB(B)
- Try
- Actual
- Q(J);
- Vars
- K(c);S_FLIGHT,XP(H)::B(B),XQ(d)
- Q(d);P_SPINQ(d),XB(B)::R(G)+S(F)
- Q(d);N_GUARD,SBLOCK,XP(H)::R(A)+B(B)
- Q(d);XQ(J)::R(G)+S(F),DCHECK,XQ(d)
- Q(d);N_GUARD,P_SPINQ(d),XS(F)::QAB1(J)
- Q(d);N_GUARD,XP(I)::QAB1(J)
- R(a);N_GUARD,XR(A)::QAR2(J),XQ(d)
- R(a);XQ(J)::S(F),XR(a)
- S(f);N_GUARD,XP(I)::QAR1(J)
- P(e);SBLOCK,XP(H)::S(D)
- Q(d);N_GUARD::QAB1(J),XQ(d)
- Q(d);N_GUARD::QAR1(J)
- Q(d);N_GUARD::QAR1(J),XQ(d)
- Q(d);N_GUARD::QAB1(J)
- R(a);N_GUARD::QAR2(J),XQ(d)
- R(a);N_GUARD::R(A)+B(B),XQ(d)
- S(f);N_GUARD::QAR1(J),XS(f)
- S(f);N_GUARD::QAR1(J)
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).