MESON Chess Problem Database
Problem Display
PID: 240010 (1n4B1/7K/1p3B2/5kp1/2N5/Q3R2P/rr3N1p/1qb2R2 w - - 0 1)
Szoghy, Jozsef
Parallele 50, 1948
#2
9 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kf4+
- 2.Sd3#
- 1...Kxf6+
- 2.Se4#
- 1...Rd2
- 2.Rf3#
- 1...Bd2
- 2.Sd1#
- 1...Kf4+
- Tries
- 1.Bxb2?
- threat
- 2.Sd1#
- 2.Sh1#
- 2.Sd3#
- 2.Se4#
- 2.Sg4#
- 2.Qf8#
- 1...Kf4+
- 2.Sd3#
- 2.Se4#
- 1...Rxb2
- 2.Qf8#
- 1...Rxa3
- 2.Sd1#
- 2.Sh1#
- 2.Sd3#
- 2.Se4#
- 2.Sg4#
- 1...Bxb2
- 2.Sd1#
- 2.Rf3#
- 1...Bxe3
- 2.Qf8#
- 1...g4
- 2.Se4#
- 1...h1Q
- 2.Sxh1#
- 2.Qf8#
- 1...h1S
- 2.Sxh1#
- 2.Qf8#
- 1...h1B
- 2.Sxh1#
- 2.Qf8#
- 1...h1R
- 2.Sxh1#
- 2.Qf8#
- 1...Qc2
- 2.Qf8#
- 1...Qd3
- 2.Sxd3#
- 2.Qf8#
- 1...Qe4
- 2.Sxe4#
- 2.Qf8#
- 1...Bd2
- 2.Sd1#
- 2.Qf8#
- 1...Sd7
- 2.Sd1#
- 2.Sh1#
- 2.Sd3#
- 2.Se4#
- 2.Sg4#
- 1...Qxb2!
- threat
- 1.Be5?
- threat
- 2.Sd6#
- 2.Qf8#
- 1...Rxa3
- 2.Sd6#
- 1...Bxe3
- 2.Qf8#
- 1...Qd3
- 2.Qf8#
- 2.Qxd3#
- 1...Qe4
- 2.Qf8#
- 1...Rd2
- 2.Rf3#
- 2.Qf8#
- 1...Rb4
- 2.Sd6#
- 1...Sd7
- 2.Sd6#
- 1...g4!
- threat
- 1.Be6+?
- 1...Kf4+
- 2.Sd3#
- 1...Kxf6+!
- 1...Kf4+
- 1.Re5+?
- 1...Kxf6+
- 2.Se4#
- 1...Kf4+!
- 1...Kxf6+
- 1.Qc5+?
- 1...Kf4+
- 2.Sd3#
- 1...Kxf6+
- 2.Se4#
- 1...bxc5!
- 1...Kf4+
- 1.Qf8?
- threat
- 2.Bxb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Kf4+
- 2.Sd3#
- 1...Ra7+
- 2.Be7#
- 1...Rxf2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Rc2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Rd2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 2.Rf3#
- 1...Re2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Rb3
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Rb4
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Rb5
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...g4
- 2.Bh4#
- 2.Be7#
- 2.Bd8#
- 1...Sd7!
- threat
- 1.Qd3+?
- 1...Kf4
- 2.Be5#
- 2.Rf3#
- 1...Kxf6
- 2.Sg4#
- 2.Re6#
- 1...Qxd3!
- 1...Kf4
- 1.Bxb2?
- Keys
- 1.Sd2!
- threat
- 2.Sd1#
- 2.Sh1#
- 2.Sd3#
- 2.Sfe4#
- 2.Sg4#
- 2.Rf3#
- 1...Kf4+
- 2.Sfe4#
- 1...Kxf6+
- 2.Sd3#
- 1...Rxa3
- 2.Sd1#
- 2.Sh1#
- 2.Sd3#
- 2.Sfe4#
- 2.Sg4#
- 1...Rxd2
- 2.Rf3#
- 1...Bxd2
- 2.Sd1#
- 1...h1Q
- 2.Sxh1#
- 1...h1S
- 2.Sxh1#
- 2.Rf3#
- 1...h1B
- 2.Sxh1#
- 1...h1R
- 2.Sxh1#
- 2.Rf3#
- 1...Qd3
- 2.Sxd3#
- 1...Qe4
- 2.Sfxe4#
- 1...Rb3
- 2.Sd1#
- 2.Sh1#
- 2.Sd3#
- 2.Sfe4#
- 2.Sg4#
- 1...Rb4
- 2.Sfe4#
- 1...g4
- 2.Sd1#
- 2.Sh1#
- 2.Sd3#
- 2.Sfe4#
- 2.Sxg4#
- threat
- 1.Sd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- K(f);CHECK,P-FLIGHT::R(A)+S(B),DCHECK
- K(f);CHECK,P-FLIGHT,XB(G)::R(A)+S(B),DCHECK
- R(d);S_CUTB(b)::R(D)
- B(b);S_CUTR(d)::R(A)+S(B)
- Tries
- Try
- B(G);XR(d)
- Threat
- DUALS(6)
- Vars
- R(c);XB(G)::QAR(C)
- B(b);XR(D)::QAR(C)
- P(g);::R(A)+S(B)
- Q(a);::QAR(C)
- Refutation
- Q(a);XB(G)
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- R(c);XQ(C)::S(F)
- B(b);XR(D)::QAR(C)
- Q(a);::QAR(C)
- R(d);::S(F)
- S(i);::S(F)
- Refutation
- P(g);
- Try
- B(I);CHECK
- Vars
- K(f);CHECK,P-FLIGHT::R(A)+S(B),DCHECK
- Refutation
- K(f);CHECK,P-FLIGHT,XB(G)
- Try
- R(D);CHECK
- Vars
- K(f);CHECK,P-FLIGHT,XB(G)::R(A)+S(B),DCHECK
- Refutation
- K(f);CHECK,P-FLIGHT
- Try
- Q(C);CHECK
- Vars
- K(f);CHECK,P-FLIGHT::R(A)+S(B),DCHECK
- K(f);CHECK,P-FLIGHT,XB(G)::R(A)+S(B),DCHECK
- Refutation
- P(h);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(8)
- Vars
- K(f);CHECK,P-FLIGHT::R(A)+S(B),DCHECK
- R(c);CHECK::QAR(C)+B(G)
- Refutation
- S(i);
- Try
- Q(C);CHECK
- Refutation
- Q(a);XQ(C)
- Try
- Actual
- S(F);
- Threat
- DUALS(6)
- Vars
- K(f);CHECK,P-FLIGHT::R(A)+S(B)
- K(f);CHECK,P-FLIGHT,XB(G)::R(A)+S(B)
- R(d);XS(F)::R(D)
- B(b);XS(F)::R(A)+S(B)
- P(e);P_PINP(E)::R(A)+S(B),XQ(e)
- P(e);::R(A)+S(B),XB(e)
- Q(a);::R(A)+S(B),XQ(a)
- R(d);::R(A)+S(B)
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).