MESON Chess Problem Database
Problem Display
PID: 270481 (5QbN/K1P4q/1p2k3/RN4P1/BBPP2Rr/8/8/3r4 w - - 0 1)
Trilling, Anton AC
Die Schwalbe, 1931
#2
12 + 6
SOLUTION
- SOUND
- Sets
- 1...Kd7
- 2.c8Q#
- 1...Qb1
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Qc2
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Qd3
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Qe4
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Qf5
- 2.Qd6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.c8Q#
- 2.c8B#
- 1...Qg6
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Qh5
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Qh6
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Qxc7+
- 2.Sxc7#
- 1...Qd7
- 2.Qf6#
- 1...Qxh8
- 2.c8Q#
- 2.c8B#
- 1...Rxd4
- 2.Sxd4#
- 1...Bf7
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Kd7
- Tries
- 1.Be7?
- threat
- 2.c8Q#
- 2.c8B#
- 1...Kd7
- 2.c8Q#
- 1...Qxh8
- 2.c8Q#
- 2.c8B#
- 1...Rxd4
- 2.Sxd4#
- 1...Rxg4
- 2.c8Q#
- 2.c8B#
- 1...bxa5
- 2.c8Q#
- 2.c8B#
- 1...Qf7
- 2.c8Q#
- 2.c8B#
- 1...Bf7
- 2.c8Q#
- 2.c8B#
- 1...Qb1
- 2.c8Q#
- 2.c8B#
- 1...Qc2
- 2.c8Q#
- 2.c8B#
- 1...Qd3
- 2.c8Q#
- 2.c8B#
- 1...Qe4
- 2.c8Q#
- 2.c8B#
- 1...Qf5
- 2.c8Q#
- 2.c8B#
- 1...Qg6
- 2.c8Q#
- 2.c8B#
- 1...Qh5
- 2.c8Q#
- 2.c8B#
- 1...Qh6
- 2.c8Q#
- 2.c8B#
- 1...Qg7
- 2.c8Q#
- 2.c8B#
- 1...Ra1
- 2.c8Q#
- 2.c8B#
- 1...Rb1
- 2.c8Q#
- 2.c8B#
- 1...Rc1
- 2.c8Q#
- 2.c8B#
- 1...Re1
- 2.c8Q#
- 2.c8B#
- 1...Rf1
- 2.c8Q#
- 2.c8B#
- 1...Rg1
- 2.c8Q#
- 2.c8B#
- 1...Rdh1
- 2.c8Q#
- 2.c8B#
- 1...Rd2
- 2.c8Q#
- 2.c8B#
- 1...Rd3
- 2.c8Q#
- 2.c8B#
- 1...Rhh1
- 2.c8Q#
- 2.c8B#
- 1...Rh2
- 2.c8Q#
- 2.c8B#
- 1...Rh3
- 2.c8Q#
- 2.c8B#
- 1...Rh5
- 2.c8Q#
- 2.c8B#
- 1...Rh6
- 2.c8Q#
- 2.c8B#
- 1...Qxe7!
- threat
- 1.Re4+?
- 1...Kd7
- 2.Qe8#
- 2.c8Q#
- 1...Qxe4
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Rxe4!
- 1...Kd7
- 1.Rf4?
- threat
- 2.Qd6#
- 1...Qxc7+
- 2.Sxc7#
- 1...Kd7
- 2.c8Q#
- 1...Rxd4
- 2.Sxd4#
- 1...Qd7
- 2.Rf6#
- 2.Qf5#
- 2.Qf6#
- 1...Qe7
- 2.Qxe7#
- 2.Qf5#
- 1...Rxf4!
- threat
- 1.Qc5?
- threat
- 2.Qd5#
- 1...Qxc7+
- 2.Sxc7#
- 1...Kd7
- 2.c8Q#
- 1...Rxd4
- 2.Sxd4#
- 1...Qe4
- 2.c8Q#
- 2.c8B#
- 1...Qf5
- 2.Qd6#
- 2.Qe7#
- 2.Qc6#
- 2.c8Q#
- 2.c8B#
- 1...Qd7
- 2.Qe5#
- 1...bxc5!
- threat
- 1.Qe7+?
- 1...Kf5
- 2.Qe4#
- 1...Qxe7!
- 1...Kf5
- 1.Qf3?
- threat
- 2.Qd5#
- 1...Qxc7+
- 2.Sxc7#
- 1...Rxd4
- 2.Sxd4#
- 1...Qe4
- 2.c8Q#
- 2.c8B#
- 1...Qf5
- 2.Qc6#
- 2.c8Q#
- 2.c8B#
- 1...Qd7
- 2.Qe4#
- 2.Qf6#
- 1...Kd7!
- threat
- 1.Qf5+?
- 1...Qxf5
- 2.c8Q#
- 2.c8B#
- 1...Kxf5!
- 1...Qxf5
- 1.Qf7+?
- 1...Bxf7
- 2.c8Q#
- 2.c8B#
- 1...Qxf7!
- 1...Bxf7
- 1.Qd8?
- threat
- 2.Qd5#
- 1...Qxc7+
- 2.Sxc7#
- 1...Rxd4
- 2.Sxd4#
- 1...Qe4
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Qf5
- 2.Qe7#
- 2.Qd6#
- 2.Qc8#
- 2.Qe8#
- 2.c8Q#
- 2.c8B#
- 1...Qd7
- 2.Qf6#
- 1...Kf5!
- threat
- 1.Qe8+?
- 1...Kf5
- 2.Qe4#
- 1...Qe7!
- 1...Kf5
- 1.d5+?
- 1...Ke5
- 2.Bd6#
- 2.Qf4#
- 2.Qf6#
- 1...Kd7
- 2.Qd8#
- 2.c8Q#
- 2.c8B#
- 1...Rxd5!
- 1...Ke5
- 1.Be7?
- Keys
- 1.Qa8!
- threat
- 2.Qd5#
- 1...Qxc7+
- 2.Sxc7#
- 1...Kf5
- 2.Qe4#
- 1...Kd7
- 2.c8Q#
- 1...Rxd4
- 2.Sxd4#
- 1...Qe4
- 2.Qc8#
- 2.c8Q#
- 2.c8B#
- 1...Qf5
- 2.Qc6#
- 2.Qc8#
- 2.Qe8#
- 2.c8Q#
- 2.c8B#
- 1...Qd7
- 2.Qe4#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(d);N_PINP(J),S_FLIGHT::P=Q
- Q(e);CHECK,XP(J)::S(G),XQ(e)
- Q(e);SBLOCK::QAR1(K)
- Q(e);N_PINP(J),XS(L)::P=Q
- R(a);XP(D)::S(G),XR(a)
- Tries
- Try
- B(B);N_SPINP(J)
- Threat
- P=Q
- Vars
- K(d);S_FLIGHT::P=Q
- Q(e);XS(L)::P=Q
- R(a);XP(D)::S(G),XR(a)
- R(b);XR(E)::P=Q
- P(c);XR(F)::P=Q
- Q(e);::P=Q
- B(f);::P=Q
- R(a);::P=Q
- R(b);::P=Q
- Refutation
- Q(e);P_PINP(J),XB(B)
- Try
- R(E);CHECK
- Refutation
- R(b);XR(E)
- Try
- R(E);
- Threat
- QAR1(K)
- Vars
- Q(e);CHECK,XP(J)::S(G),XQ(e)
- K(d);N_PINP(J),S_FLIGHT::P=Q
- R(a);XP(D)::S(G),XR(a)
- Refutation
- R(b);XR(E)
- Try
- Q(K);
- Threat
- QAB1(K)
- Vars
- Q(e);CHECK,XP(J)::S(G),XQ(e)
- K(d);N_PINP(J),S_FLIGHT::P=Q
- R(a);XP(D)::S(G),XR(a)
- Q(e);N_PINP(J)::P=Q
- Q(e);SBLOCK::QAR1(K)
- Refutation
- P(c);XQ(K)
- Try
- Q(K);CHECK,N_SPINP(J)
- Vars
- K(d);OGATE,S_FLIGHT::QAB1(K)
- Refutation
- Q(e);P_PINP(J),XQ(K)
- Try
- Q(K);
- Threat
- QAB1(K)
- Vars
- Q(e);CHECK,XP(J)::S(G),XQ(e)
- R(a);XP(D)::S(G),XR(a)
- Q(e);N_PINP(J)::P=Q
- Refutation
- K(d);N_PINP(J),S_FLIGHT
- Try
- Q(K);CHECK
- Vars
- Q(e);N_PINP(J),SBLOCK,XQ(K)::P=Q
- Refutation
- K(d);S_FLIGHT,XQ(K)
- Try
- Q(K);CHECK,N_SPINP(J)
- Vars
- B(f);XQ(K)::P=Q
- Refutation
- Q(e);P_PINP(J),XQ(K)
- Try
- Q(K);
- Threat
- QAB1(K)
- Vars
- Q(e);CHECK,XP(J)::S(G),XQ(e)
- R(a);XP(D)::S(G),XR(a)
- Q(e);SBLOCK::QAR1(K)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(K);CHECK
- Vars
- K(d);OGATE,S_FLIGHT::QAB1(K)
- Refutation
- Q(e);P_SPINQ(e)
- Try
- P(D);CHECK
- Refutation
- R(a);XP(D)
- Try
- Actual
- Q(K);
- Threat
- QAB1(K)
- Vars
- Q(e);CHECK,XP(J)::S(G),XQ(e)
- K(d);N_GUARD,S_CUTQ(e),S_FLIGHT::QAB1(K)
- K(d);N_PINP(J),S_FLIGHT::P=Q
- R(a);XP(D)::S(G),XR(a)
- Q(e);N_GUARD,SBLOCK::QAR2(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).