MESON Chess Problem Database
Problem Display
PID: 243477 (q1b5/P3p3/3pB1N1/R3P3/2Rpk1Pp/4N1pp/4KB2/4b1Q1 w - - 0 1)
Buchwald, Julius
Arbejder-Skak, 1949
#2
11 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Bxd5#
- 1...Qxa7
- 2.Bd5#
- 1...Qb8
- 2.Bd5#
- 1...Bd2
- 2.Qb1#
- 1...Bxf2
- 2.Qb1#
- 1...Bc3
- 2.Qb1#
- 1...Bb4
- 2.Qb1#
- 1...Bxa5
- 2.Qb1#
- 1...Ba6
- 2.Bf5#
- 1...Bb7
- 2.Bf5#
- 1...gxf2
- 2.Qh1#
- 1...h2
- 2.Qg2#
- 1...dxe5
- 2.Rxe5#
- 1...Qd5
- Tries
- 1.Sf1?
- threat
- 2.Rxd4#
- 1...Qxa7
- 2.Bd5#
- 1...Bxf2
- 2.Sd2#
- 1...gxf2
- 2.Qh1#
- 1...dxe5
- 2.Rxe5#
- 1...Qd5
- 2.Bxd5#
- 1...Ba6
- 2.Bf5#
- 1...Bc3!
- threat
- 1.Sg2?
- threat
- 2.Rxd4#
- 1...Qxa7
- 2.Bd5#
- 1...Bxf2
- 2.Qb1#
- 1...dxe5
- 2.Rxe5#
- 1...Bc3
- 2.Qb1#
- 1...Qd5
- 2.Bxd5#
- 1...Ba6
- 2.Bf5#
- 1...gxf2!
- threat
- 1.Sf5?
- threat
- 2.Rxd4#
- 1...Qxa7
- 2.Bd5#
- 1...Bxf2
- 2.Qb1#
- 1...dxe5
- 2.Rxe5#
- 1...Bc3
- 2.Qb1#
- 1...Qd5
- 2.Bxd5#
- 1...Ba6!
- threat
- 1.Rxc8?
- threat
- 2.Bf5#
- 1...Qxc8
- 2.Bd5#
- 1...dxe3
- 2.Rc4#
- 1...d3+!
- threat
- 1.Raa4?
- threat
- 2.Rxd4#
- 1...Qxa7
- 2.Bd5#
- 1...Qd5
- 2.Bxd5#
- 1...Bc3
- 2.Qb1#
- 1...Bb4
- 2.Qb1#
- 1...Ba6
- 2.Bf5#
- 1...dxe5!
- threat
- 1.Rd5?
- threat
- 2.Rcxd4#
- 2.Rdxd4#
- 1...Qxd5
- 2.Bxd5#
- 1...dxe5
- 2.Rxe5#
- 1...Bc3
- 2.Qb1#
- 1...Ba6
- 2.Bf5#
- 2.Rxd4#
- 1...Qxa7!
- threat
- 1.Qxe1?
- threat
- 2.Qb1#
- 1...Qb8
- 2.Bd5#
- 1...Qb7!
- threat
- 1.Qxg3?
- threat
- 2.Qf4#
- 2.Qf3#
- 1...dxe5
- 2.Rxe5#
- 2.Qxe5#
- 2.Qf3#
- 1...hxg3!
- threat
- 1.exd6?
- threat
- 2.Re5#
- 1...Bxa5
- 2.Qb1#
- 1...Qd5
- 2.Bxd5#
- 1...exd6!
- threat
- 1.Sf1?
- Keys
- 1.Sd1!
- threat
- 2.Rxd4#
- 1...Qxa7
- 2.Bd5#
- 1...Bxf2
- 2.Sc3#
- 1...gxf2
- 2.Qh1#
- 1...dxe5
- 2.Rxe5#
- 1...Qd5
- 2.Bxd5#
- 1...Bc3
- 2.Sxc3#
- 1...Ba6
- 2.Bf5#
- threat
- 1.Sd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(i);N_GUARD::B(I),XQ(i)
- Q(i);N_GUARD,XP(K)::B(I)
- Q(i);N_GUARD::B(I)
- B(a);OGATE::QAB(A)
- B(a);OGATE,XB(C)::QAB(A)
- B(a);OGATE,XR(G)::QAB(A)
- B(j);N_GUARD,P_PINR(E)::B(I)
- B(j);N_GUARD::B(I)
- P(b);N_GUARD,XB(C)::QAB(A)
- P(c);N_GUARD::QAB(A)
- P(g);OGATE,XP(H)::R1(G),XP(g)
- Tries
- Try
- S(D);
- Threat
- R1(E),XP(d)
- Vars
- Q(i);N_GUARD,XP(K)::B(I)
- B(a);N_GUARD,XB(C)::S(D)
- P(b);N_GUARD,XB(C)::QAB(A)
- P(g);OGATE,XP(H)::R1(G),XP(g)
- Q(i);N_GUARD::B(I),XQ(i)
- B(j);N_GUARD,P_PINR(E)::B(I)
- Refutation
- B(a);
- Try
- S(D);
- Threat
- R1(E),XP(d)
- Vars
- Q(i);N_GUARD,XP(K)::B(I)
- B(a);OGATE,XB(C)::QAB(A)
- P(g);OGATE,XP(H)::R1(G),XP(g)
- B(a);OGATE::QAB(A)
- Q(i);N_GUARD::B(I),XQ(i)
- B(j);N_GUARD,P_PINR(E)::B(I)
- Refutation
- P(b);XB(C)
- Try
- S(D);
- Threat
- R1(E),XP(d)
- Vars
- Q(i);N_GUARD,XP(K)::B(I)
- B(a);OGATE,XB(C)::QAB(A)
- P(g);OGATE,XP(H)::R1(G),XP(g)
- B(a);OGATE::QAB(A)
- Q(i);N_GUARD::B(I),XQ(i)
- Refutation
- B(j);P_PINR(E)
- Try
- R(E);N_PINP(d),XB(j)
- Threat
- B(I)
- Vars
- Q(i);N_GUARD,XR(E)::B(I)
- P(d);OGATEB,XS(D)::R(E)
- Refutation
- P(d);CHECK
- Try
- R(G);
- Threat
- R1(E),XP(d)
- Vars
- Q(i);N_GUARD,XP(K)::B(I)
- Q(i);N_GUARD::B(I),XQ(i)
- B(a);OGATE::QAB(A)
- B(j);N_GUARD,P_PINR(E)::B(I)
- Refutation
- P(g);XP(H)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- Q(i);OGATE,XR(G)::B(I),XQ(i)
- P(g);OGATE,XP(H)::R1(G),XP(g)
- B(a);OGATE::QAB(A)
- Refutation
- Q(i);XP(K)
- Try
- Q(A);XB(a)
- Threat
- QAB(A)
- Vars
- Q(i);N_GUARD::B(I)
- Refutation
- Q(i);
- Try
- Q(A);XP(b)
- Threat
- DUALS(2)
- Refutation
- P(f);XQ(A)
- Try
- P(H);XP(g)
- Threat
- R1(G)
- Vars
- B(a);OGATE,XR(G)::QAB(A)
- Q(i);N_GUARD::B(I),XQ(i)
- Refutation
- P(h);XP(H)
- Try
- Actual
- S(D);
- Threat
- R1(E),XP(d)
- Vars
- Q(i);N_GUARD,XP(K)::B(I)
- B(a);N_GUARD,XB(C)::S(D)
- P(b);N_GUARD,XB(C)::QAB(A)
- P(g);OGATE,XP(H)::R1(G),XP(g)
- Q(i);N_GUARD::B(I),XQ(i)
- B(a);N_GUARD::S(D),XB(a)
- B(j);N_GUARD,P_PINR(E)::B(I)
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).