MESON Chess Problem Database
Problem Display
PID: 194060 (6Q1/5N2/1ppPrP2/1Bk1P2R/2Pq4/P6p/1p2K2P/6B1 w - - 0 1)
Mari, Alberto
L'Italia Scacchistica, 1917
#2
12 + 7
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qxg1
- 2.Qxg1#
- 1...Qf2+
- 2.Bxf2#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxe5+
- 2.Rxe5#
- 1...Rxd6
- 2.exd6#
- 1...Rxf6
- 2.exf6#
- 1...Re7
- 2.e6#
- 1...Re8
- 2.e6#
- 1...cxb5
- 2.Qc8#
- 1...Qxg1
- Tries
- 1.Qg2?
- threat
- 2.Qxc6#
- 1...Qf2+
- 2.Bxf2#
- 2.Qxf2#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxe5+
- 2.Rxe5#
- 1...Qxg1
- 2.Qxg1#
- 1...Rxd6
- 2.exd6#
- 1...cxb5
- 2.Qd5#
- 1...hxg2!
- threat
- 1.Qg4?
- threat
- 2.Bxd4#
- 2.Qxd4#
- 1...Qf2+
- 2.Bxf2#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxe5+
- 2.Rxe5#
- 1...Qxg1
- 2.Qxg1#
- 1...Rxd6
- 2.exd6#
- 1...cxb5!
- threat
- 1.Qa8?
- threat
- 2.Qxc6#
- 1...Qf2+
- 2.Bxf2#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxe5+
- 2.Rxe5#
- 1...Rxd6
- 2.exd6#
- 1...cxb5
- 2.Qd5#
- 2.Qc8#
- 1...Qxg1!
- threat
- 1.Qc8?
- threat
- 2.Qxc6#
- 1...Qf2+
- 2.Bxf2#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxe5+
- 2.Rxe5#
- 1...Rxd6
- 2.exd6#
- 1...Qxg1!
- threat
- 1.Qe8?
- threat
- 2.Qxc6#
- 1...Qf2+
- 2.Bxf2#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxe5+
- 2.Rxe5#
- 2.Qxe5#
- 1...Rxd6
- 2.exd6#
- 1...Rxe8
- 2.e6#
- 1...cxb5
- 2.Qxb5#
- 2.Qc8#
- 1...Qxg1!
- threat
- 1.Qg2?
- Keys
- 1.Sg5!
- threat
- 2.Se4#
- 2.Sxe6#
- 1...Qf2+
- 2.Bxf2#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxe5+
- 2.Se4#
- 1...Qxg1
- 2.Sxe6#
- 1...Rxd6
- 2.Se4#
- 1...Rxf6
- 2.Se4#
- 1...cxb5
- 2.Qc8#
- 1...b1Q
- 2.Sxe6#
- 1...b1B
- 2.Sxe6#
- 1...Re7
- 2.Se4#
- 1...Re8
- 2.Se4#
- threat
- 1.Sg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(c);N_SPINQ(c),OGATE,XB(A)::QAB(L),XQ(c)
- Q(c);CHECK,OGATEB::B(A),XQ(c)
- Q(c);CHECK,N_PINP(G),OGATEB::B(A),XQ(c)
- R(g);CHECK,OGATE,P_SPINR(g),XP(G)::R(H),XR(g)
- R(g);N_PINP(G),XP(I)::R(H)+P(G),XR(g)
- R(g);N_PINP(G),XP(J)::R(H)+P(G),XR(g)
- R(g);::R(H)+P(G)
- P(f);OGATEB,XB(F)::QAR(L)
- Tries
- Try
- Q(L);
- Threat
- QAR1(L),XP(f)
- Vars
- Q(c);CHECK,N_PINP(G),OGATEB::B(A),XQ(c)
- R(g);CHECK,OGATE,P_SPINR(g),XP(G)::R(H),XR(g)
- Q(c);N_SPINQ(c),OGATE,XB(A)::QAB(L),XQ(c)
- R(g);N_PINP(G),XP(I)::R(H)+P(G),XR(g)
- P(f);N_GUARD,XB(F)::QAR1(L)
- Refutation
- P(b);XQ(L)
- Try
- Q(L);
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,OGATEB::B(A),XQ(c)
- Q(c);CHECK,N_PINP(G),OGATEB::B(A),XQ(c)
- R(g);CHECK,OGATE,P_SPINR(g),XP(G)::R(H),XR(g)
- Q(c);N_SPINQ(c),OGATE,XB(A)::QAB(L),XQ(c)
- R(g);N_PINP(G),XP(I)::R(H)+P(G),XR(g)
- Refutation
- P(f);XB(F)
- Try
- Q(L);
- Threat
- QAR1(L),XP(f)
- Vars
- Q(c);CHECK,OGATEB::B(A),XQ(c)
- Q(c);CHECK,N_PINP(G),OGATEB::B(A),XQ(c)
- R(g);CHECK,OGATE,P_SPINR(g),XP(G)::R(H),XR(g)
- R(g);N_PINP(G),XP(I)::R(H)+P(G),XR(g)
- Refutation
- Q(c);N_SPINQ(c),XB(A)
- Try
- Q(L);P_PINP(f)
- Threat
- QAR1(L),XP(f)
- Vars
- Q(c);CHECK,OGATEB::B(A),XQ(c)
- Q(c);CHECK,N_PINP(G),OGATEB::B(A),XQ(c)
- R(g);CHECK,OGATE,P_SPINR(g),XP(G)::R(H),XR(g)
- R(g);N_PINP(G),XP(I)::R(H)+P(G),XR(g)
- Refutation
- Q(c);N_SPINQ(c),XB(A)
- Try
- Q(L);
- Threat
- QAR1(L),XP(f)
- Vars
- Q(c);CHECK,OGATEB::B(A),XQ(c)
- Q(c);CHECK,N_PINP(G),OGATEB::B(A),XQ(c)
- R(g);N_PINP(G),XP(I)::R(H)+P(G),XR(g)
- R(g);XQ(L)::R(H)+P(G)
- Refutation
- Q(c);N_SPINQ(c),XB(A)
- Try
- Actual
- S(K);
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,OGATEB::B(A),XQ(c)
- Q(c);CHECK,N_PINP(G),OGATEB::B(A),XQ(c)
- R(g);CHECK,XP(G)::S(K)
- Q(c);N_SPINQ(c),XB(A)::S(K),XR(g)
- R(g);N_PINP(G),XP(I)::S(K)
- R(g);N_PINP(G),XP(J)::S(K)
- P(f);OGATEB,XB(F)::QAR(L)
- P(a);::S(K),XR(g)
- R(g);::S(K)
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).