MESON Chess Problem Database
Problem Display
PID: 195140 (1N2K1BQ/1p1P4/2p5/B1k1PR2/Pr1q4/1R1pP3/1N1P4/8 w - - 0 1)
Barroso, Victor Manuel Diez
Brisbane Courier, 1918
#2
13 + 6
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qxe5+
- 2.Qxe5#
- 1...Qf4
- 2.Sxd3#
- 1...Qg4
- 2.Sxd3#
- 1...Qh4
- 2.Sxd3#
- 1...Qxd7+
- 2.Sxd7#
- 1...Rxa4
- 2.Bb6#
- 1...Rc4
- 2.Bb6#
- 1...Rb6
- 2.Bxb6#
- 1...b5
- 2.Sa6#
- 1...b6
- 2.Sa6#
- 1...Qxe5+
- Tries
- 1.exd4+?
- 1...Rxd4
- 2.Bb6#
- 1...Kxd4!
- 1...Rxd4
- 1.e6+?
- 1...Kd6
- 2.d8Q#
- 2.d8R#
- 1...Qe5
- 2.Qxe5#
- 1...Qd5!
- 1...Kd6
- 1.d8Q?
- 1...Qxe5+
- 2.Rxe5#
- 2.Qe7#
- 2.Qxe5#
- 1...Qd7+
- 2.Sxd7#
- 1...Qxb2
- 2.Sd7#
- 2.Bxb4#
- 2.Qe7#
- 2.Qd6#
- 1...Qxe3
- 2.Bxb4#
- 2.Qd6#
- 1...Rxb3
- 2.Qxd4#
- 2.exd4#
- 1...Rxa4
- 2.Bb6#
- 2.Qb6#
- 1...Qd5
- 2.Bxb4#
- 1...Qc3
- 2.Sd7#
- 2.Qe7#
- 2.Qd6#
- 1...Qc4
- 2.Sd7#
- 2.Qe7#
- 2.Qd6#
- 1...Qe4
- 2.Sd7#
- 2.Qe7#
- 2.Qd6#
- 1...Qf4
- 2.Sxd3#
- 2.Sd7#
- 2.Qe7#
- 2.Qd6#
- 1...Qg4
- 2.Sxd3#
- 2.Sd7#
- 2.Qe7#
- 2.Qd6#
- 1...Qh4
- 2.Sxd3#
- 2.Sd7#
- 2.Qd6#
- 2.e6#
- 1...Qd6
- 2.Bxb4#
- 2.Qxd6#
- 2.exd6#
- 1...Rc4
- 2.Bb6#
- 2.Qb6#
- 1...Rb5
- 2.Qxd4#
- 2.exd4#
- 1...Rb6
- 2.Bxb6#
- 2.Qxb6#
- 2.Qxd4#
- 2.exd4#
- 1...b5
- 2.Sa6#
- 2.Bb6#
- 2.Qb6#
- 1...b6
- 2.Sa6#
- 1...Qxd8+!
- 1...Qxe5+
- 1.exd4+?
- Keys
- 1.Qh4!
- 1...Qxe5+
- 2.Qe7#
- 1...Qxd7+
- 2.Sxd7#
- 1...Qxb2
- 2.Qe7#
- 2.Qxb4#
- 1...Qxe3
- 2.Qxb4#
- 1...Qxh4
- 2.Sxd3#
- 1...Rxb3
- 2.Qxd4#
- 2.exd4#
- 1...Rxa4
- 2.Bb6#
- 1...Qc3
- 2.Qe7#
- 1...Qc4
- 2.Qe7#
- 1...Qe4
- 2.Qe7#
- 1...Qf4
- 2.Sxd3#
- 2.Qe7#
- 1...Qg4
- 2.Sxd3#
- 2.Qe7#
- 1...Qd5
- 2.Qxb4#
- 1...Qd6
- 2.Qxb4#
- 1...Rc4
- 2.Bb6#
- 1...Rb5
- 2.Qxd4#
- 2.exd4#
- 1...Rb6
- 2.Bxb6#
- 2.Qxd4#
- 2.exd4#
- 1...b5
- 2.Sa6#
- 1...b6
- 2.Sa6#
- 1...Qxe5+
- 1.Qh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- Q(c);CHECK,OGATE,P_SPINQ(c),XP(G)::QAR2(M),XQ(c)
- Q(c);N_GUARD::S(A),XP(a)
- Q(c);CHECK,XP(I)::S(J),XQ(c)
- R(b);N_GUARD,XP(E)::B(F)
- R(b);N_GUARD::B(F)
- R(b);N_GUARD::B(F),XR(b)
- P(f);N_GUARD::S(J)
- Tries
- Try
- P(D);CHECK,XQ(c)
- Vars
- R(b);SBLOCK,XP(D)::B(F)
- Refutation
- K(d);S_FLIGHT,XP(D)
- Try
- P(G);CHECK
- Vars
- K(d);S_FLIGHT::P=Q
- Q(c);N_GUARD,P_PINP(G),P_SPINQ(c)::QAR2(M),XQ(c)
- Refutation
- Q(c);P_SPINQ(c)
- Try
- P(I);
- Vars
- Q(c);CHECK,N_GUARD::S(J),XQ(c)
- Q(c);N_GUARD::B(F),XR(b)
- P(f);N_GUARD::S(J)
- Refutation
- Q(c);CHECK,XQ(I)
- Try
- Actual
- Q(M);
- Vars
- Q(c);CHECK,N_GUARD,P_SPINQ(c),XP(G)::QAB(M)
- Q(c);CHECK,XP(I)::S(J),XQ(c)
- Q(c);OGATE,P_PINP(G),XP(D)::QAB1(M),XR(b)
- Q(c);N_GUARD,XQ(M)::S(A),XP(a)
- R(b);N_GUARD,XP(E)::B(F)
- Q(c);N_GUARD::QAB(M)
- Q(c);N_GUARD,P_PINP(G)::QAB(M)
- Q(c);OGATE::QAB1(M),XR(b)
- R(b);N_GUARD::B(F)
- P(f);N_GUARD::S(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).