MESON Chess Problem Database
Problem Display
PID: 96549 (5q2/n1p1r3/2p2Q1p/5b2/2B1kr2/6pN/K2P2P1/B3N1b1 w - - 0 1)
Mari, Alberto
Il Problema, 1932
#2
8 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rf2
- 2.Qd4#
- 1...Rf3
- 2.gxf3#
- 1...Re5
- 2.Qxe5#
- 1...Rd7
- 2.Qe5#
- 1...Rf7
- 2.Qe5#
- 1...Rg7
- 2.Qe5#
- 1...Rh7
- 2.Qe5#
- 1...Bh2
- 2.Qd4#
- 1...Be3
- 2.d3#
- 1...Bd4
- 2.Qxd4#
- 1...Be6
- 2.Qe5#
- 1...Sb5
- 2.Qxc6#
- 1...Sc8
- 2.Qxc6#
- 1...h5
- 2.Sg5#
- 1...Rf2
- Tries
- 1.Sf2+?
- 1...Rxf2
- 2.Qd4#
- 1...gxf2
- 2.Qd4#
- 1...Bxf2!
- 1...Rxf2
- 1.Qb2?
- threat
- 2.Qb1#
- 2.Qc2#
- 1...Bd4
- 2.Qxd4#
- 1...Qb8
- 2.Qc2#
- 1...Rf3
- 2.gxf3#
- 1...Rd7
- 2.Qe5#
- 1...Qd8!
- threat
- 1.Qc3?
- threat
- 2.Qc2#
- 2.Qd3#
- 1...Bd4
- 2.Qxd4#
- 1...Rf3
- 2.Qxf3#
- 2.gxf3#
- 1...Rd7
- 2.Qe5#
- 1...Qd8!
- threat
- 1.Qxe7+?
- 1...Be6
- 2.Qxe6#
- 1...Qxe7!
- 1...Be6
- 1.Qd6?
- threat
- 2.Bd3#
- 2.Qxf4#
- 2.Qd3#
- 1...Bxh3
- 2.Bd3#
- 2.Qd3#
- 1...Bg4
- 2.Bd3#
- 2.Qd3#
- 1...Be6
- 2.Qe5#
- 2.Qd3#
- 1...Bg6
- 2.Bd3#
- 2.Qd3#
- 1...Bd7
- 2.Bd3#
- 2.Qd3#
- 1...Bh7
- 2.Bd3#
- 2.Qd3#
- 1...Bc8
- 2.Bd3#
- 2.Qd3#
- 1...Qd8
- 2.Bd3#
- 2.Qxf4#
- 1...Qf7
- 2.Qxf4#
- 2.Qd3#
- 1...Qg8
- 2.Qxf4#
- 2.Qd3#
- 1...Rf1
- 2.Bd3#
- 2.Qd3#
- 1...Rf2
- 2.Bd3#
- 2.Qd3#
- 2.Qd4#
- 1...Rf3
- 2.gxf3#
- 1...Rg4
- 2.Bd3#
- 2.Qd3#
- 1...Rh4
- 2.Bd3#
- 2.Qd3#
- 1...Re5
- 2.Bd3#
- 2.Qxe5#
- 2.Qd3#
- 1...Rd7
- 2.Bd3#
- 2.Qxf4#
- 2.Qe5#
- 1...Be3
- 2.Bd3#
- 2.Qd3#
- 2.d3#
- 1...Bd4
- 2.Bd3#
- 2.Qxf4#
- 2.Qxd4#
- 1...cxd6!
- threat
- 1.Sf2+?
- Keys
- 1.Qg5!
- threat
- 2.Qxf4#
- 1...Bxh3
- 2.Bd3#
- 1...hxg5
- 2.Sxg5#
- 1...Rf1
- 2.d3#
- 1...Rf2
- 2.Qe3#
- 1...Rf3
- 2.gxf3#
- 1...Rg4
- 2.d3#
- 1...Rh4
- 2.d3#
- 1...Be3
- 2.d3#
- 1...Bg4
- 2.Bd3#
- 1...Be6
- 2.Qe5#
- 1...Bg6
- 2.Bd3#
- 1...Bd7
- 2.Bd3#
- 1...Bh7
- 2.Bd3#
- 1...Bc8
- 2.Bd3#
- threat
- 1.Qg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 10
- REMOVED MATES = 10
- Sets
- R(d);P_PINP(D),S_CUTB(a)::QAR1(H)
- R(d);OGATE::P(E),XR(d)
- R(j);N_GUARD::QAR1(H),XR(j)
- R(j);N_GUARD::QAR1(H)
- B(a);N_GUARD::QAR1(H)
- B(a);SBLOCK::P(D)
- B(a);N_GUARD::QAR1(H),XB(a)
- B(e);P_PINB(G),S_CUTR(j)::QAR1(H)
- S(h);N_GUARD::QAB(H),XP(f)
- P(g);N_GUARD::S(F)
- Tries
- Try
- S(F);CHECK
- Vars
- R(d);P_PINP(D),XS(F)::QAR1(H)
- P(b);XS(F)::QAR1(H)
- Refutation
- B(a);XS(F)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- B(a);N_GUARD::QAR1(H),XB(a)
- Q(k);::QAB(H)
- R(d);OGATE::P(E),XR(d)
- R(j);N_GUARD::QAR1(H)
- Refutation
- Q(k);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- B(a);N_GUARD::QAR1(H),XB(a)
- R(j);N_GUARD::QAR1(H)
- Refutation
- Q(k);
- Try
- Q(H);CHECK,XR(j)
- Vars
- B(e);N_GUARD,P_PINB(G),P_SPINB(e)::QAR2(H),XB(e)
- Refutation
- Q(k);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- R(d);OGATE::P(E),XR(d)
- Refutation
- P(i);XQ(H)
- Try
- Actual
- Q(H);
- Threat
- QAR1(H),XR(d)
- Vars
- B(e);XS(F)::B(G)
- P(g);XQ(H)::S(F),XP(g)
- R(d);::P(D)
- R(d);OGATE,P_PINP(D)::QAR1(H)
- R(d);OGATE::P(E),XR(d)
- B(a);SBLOCK::P(D)
- B(e);::B(G)
- B(e);OGATE,P_PINB(G)::QAR1(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).