MESON Chess Problem Database
Problem Display
PID: 173612 (8/p4K2/r1BQp2N/2pq1PN1/2PkPP2/1P1r4/1P3P2/5n2 w - - 0 1)
Boros, Sandor
Comm., Centurini/Guidelli MT, 1925
#2
12 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...exf5+
- 2.Qxd5#
- 1...e5+
- 2.Qxd5#
- 1...exf5+
- Tries
- 1.Qxc5+?
- 1...Qxc5
- 2.Sxe6#
- 1...Kxc5!
- 1...Qxc5
- 1.cxd5?
- threat
- 2.Qe5#
- 2.dxe6#
- 1...Rxc6
- 2.Qe5#
- 2.dxc6#
- 1...exd5
- 2.Qe5#
- 2.Qxd5#
- 2.Qf6#
- 1...exf5
- 2.Sxf5#
- 2.Qe5#
- 2.Qf6#
- 1...Rd1
- 2.dxe6#
- 1...Rd2
- 2.dxe6#
- 1...Rc3
- 2.dxe6#
- 1...Re3
- 2.dxe6#
- 1...Rf3
- 2.dxe6#
- 1...Rg3
- 2.dxe6#
- 1...Rh3
- 2.dxe6#
- 1...Se3
- 2.Qe5#
- 1...c4
- 2.dxe6#
- 1...e5
- 2.Qxe5#
- 1...Rxb3!
- threat
- 1.exd5?
- threat
- 2.Qe5#
- 2.dxe6#
- 1...Rxc6
- 2.Qe5#
- 2.dxc6#
- 1...exd5
- 2.Qe5#
- 2.Qxd5#
- 2.Qf6#
- 1...exf5
- 2.Sxf5#
- 2.Qe5#
- 2.Qf6#
- 1...Rd1
- 2.dxe6#
- 1...Rd2
- 2.dxe6#
- 1...Rc3
- 2.dxe6#
- 1...Re3
- 2.dxe6#
- 1...Rf3
- 2.dxe6#
- 1...Rg3
- 2.dxe6#
- 1...Rh3
- 2.dxe6#
- 1...Se3
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 1...Rxb3!
- threat
- 1.fxe6?
- threat
- 2.Sf5#
- 2.Qxd5#
- 1...Qxd6
- 2.Sf5#
- 1...Rxb3
- 2.Qxd5#
- 1...Rd1
- 2.Qxd5#
- 1...Rd2
- 2.Qxd5#
- 1...Rc3
- 2.Qxd5#
- 1...Re3
- 2.Qxd5#
- 1...Rf3
- 2.Qxd5#
- 1...Rg3
- 2.Qxd5#
- 1...Rh3
- 2.Qxd5#
- 1...Sg3
- 2.Qxd5#
- 1...Se3!
- threat
- 1.Qxc5+?
- Keys
- 1.Qxe6!
- threat
- 2.Qxd5#
- 1...Qxe6+
- 2.Sxe6#
- 1...Qxf5+
- 2.Sxf5#
- 1...Qd7+
- 2.Qxd7#
- 1...Qxc4
- 2.Qxc4#
- 1...Qxe4
- 2.Qxe4#
- 1...Qxc6
- 2.Qe5#
- 1...Qe5
- 2.Qxe5#
- 1...Qd6
- 2.Qxd6#
- 1...Qd8
- 2.Qe5#
- 1...Se3
- 2.Sf3#
- threat
- 1.Qxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 2
- Sets
- P(g);CHECK,N_GUARD,XP(G)::QAR1(J),XQ(e)
- P(g);CHECK,N_GUARD::QAR1(J),XQ(e)
- Tries
- Try
- Q(J);CHECK,N_PINQ(e),XP(d)
- Vars
- Q(e);XQ(J)::S(H),XP(g)
- Refutation
- K(c);S_FLIGHT,XQ(J)
- Try
- P(D);XQ(e)
- Threat
- DUALS(2)
- Vars
- R(b);::QAR(J)+P(D),XP(g)
- S(a);::QAB1(J)
- P(d);::QAR(J)+P(D),XP(g)
- P(g);::QAB1(J),XP(g)
- Refutation
- R(b);XP(C)
- Try
- P(E);XQ(e)
- Threat
- DUALS(2)
- Vars
- R(b);::QAR(J)+P(E),XP(g)
- S(a);::QAB1(J)
- P(g);::QAB1(J),XP(g)
- Refutation
- R(b);XP(C)
- Try
- P(G);P_SPINP(G),XP(g)
- Threat
- DUALS(2)
- Vars
- Q(e);N_PINP(G),N_SPINQ(e),XQ(J)::S(K)
- R(b);XP(C)::QAR1(J),XQ(e)
- R(b);::QAR1(J),XQ(e)
- R(b);N_PINP(G),P_PINP(F)::QAR1(J),XQ(e)
- S(a);::QAR1(J),XQ(e)
- Refutation
- S(a);
- Try
- Actual
- Q(J);N_PINQ(e),P_SPINQ(J),XP(g)
- Threat
- QAR1(J),XQ(e)
- Vars
- Q(e);CHECK,XQ(J)::S(H),XQ(e)
- Q(e);CHECK,N_PINQ(J),XP(G)::S(K),XQ(e)
- Q(e);CHECK,N_PINQ(J)::QAR(J),XQ(e)
- Q(e);XP(D)::QAR1(J),XQ(e)
- Q(e);N_PINQ(J),XP(E)::QAR1(J),XQ(e)
- Q(e);N_PINQ(J),XB(I)::QAB1(J)
- Q(e);N_PINQ(J)::QAB1(J),XQ(e)
- Q(e);N_PINQ(J)::QAR2(J),XQ(e)
- Q(e);N_PINQ(J)::QAB1(J)
- S(a);S_CUTR(b)::S(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).