MESON Chess Problem Database
Problem Display
PID: 225146 (4R1Kn/qpB4N/r3Rp2/1Qbr1k1B/p5p1/1N4P1/b7/8 w - - 0 1)
Szoghy, Jozsef
Suomen Shakki, 1954
#2
9 + 11
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Qxd3#
- 1...Rd4
- 2.Sxd4#
- 1...Ra5
- 2.Rxf6#
- 1...Bg1
- 2.Qxd5#
- 1...Bf2
- 2.Qxd5#
- 1...Ba3
- 2.Qxd5#
- 1...Be3
- 2.Qxd5#
- 1...Bb4
- 2.Qxd5#
- 1...Bd4
- 2.Qd3#
- 1...Bb6
- 2.Rxf6#
- 2.Qxd5#
- 1...Bd6
- 2.Rxf6#
- 1...Be7
- 2.Qxd5#
- 1...Bf8
- 2.Qxd5#
- 1...b6
- 2.Rxf6#
- 1...Rd3
- Tries
- 1.Sd4+?
- 1...Bxd4
- 2.Qd3#
- 1...Rxd4!
- 1...Bxd4
- 1.Qe2?
- threat
- 2.Qxg4#
- 2.Qe4#
- 1...Rxe6
- 2.Qxg4#
- 2.Qxe6#
- 1...Re5
- 2.Qxg4#
- 1...Bb1
- 2.Qxg4#
- 1...Be3
- 2.Qxg4#
- 1...Rd4!
- threat
- 1.Qc4?
- threat
- 2.Qxd5#
- 2.Qe4#
- 2.Qf4#
- 2.Qxg4#
- 1...Rxe6
- 2.Qf4#
- 2.Qxg4#
- 1...Bxb3
- 2.Qe4#
- 2.Qf4#
- 2.Qxg4#
- 1...Be7
- 2.Qxd5#
- 2.Qe4#
- 2.Qxg4#
- 1...Rd1
- 2.Qe4#
- 2.Qf4#
- 2.Qxg4#
- 1...Rd2
- 2.Qe4#
- 2.Qf4#
- 2.Qxg4#
- 1...Rd3
- 2.Qxd3#
- 2.Qe4#
- 2.Qf4#
- 2.Qxg4#
- 1...Re5
- 2.Qf4#
- 2.Qxg4#
- 1...Rdd6
- 2.Qe4#
- 2.Qf4#
- 2.Qxg4#
- 1...Rd7
- 2.Qe4#
- 2.Qf4#
- 2.Qxg4#
- 1...Rd8
- 2.Qe4#
- 2.Qf4#
- 2.Qxg4#
- 1...Rad6
- 2.Qe4#
- 2.Qf4#
- 2.Qxg4#
- 1...Bb1
- 2.Qxd5#
- 2.Qf4#
- 2.Qxg4#
- 1...Be3
- 2.Qxd5#
- 2.Qe4#
- 2.Qxg4#
- 1...Bd4
- 2.Qd3#
- 2.Qc2#
- 1...Bd6
- 2.Rxf6#
- 2.Qe4#
- 2.Qxg4#
- 1...Sg6
- 2.Bxg4#
- 2.Qe4#
- 2.Qxg4#
- 1...Sf7
- 2.Qe4#
- 2.Qf4#
- 2.Qxg4#
- 1...Rd4!
- threat
- 1.Qc6?
- threat
- 2.Rxf6#
- 2.Qxd5#
- 1...Bxb3
- 2.Rxf6#
- 1...bxc6
- 2.Rxf6#
- 1...Rd4
- 2.Rxf6#
- 1...Rd1
- 2.Rxf6#
- 2.Qe4#
- 1...Rd2
- 2.Rxf6#
- 2.Qe4#
- 1...Rd3
- 2.Rxf6#
- 2.Qe4#
- 1...Re5
- 2.Rxf6#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Rxf6#
- 2.Qe4#
- 1...Rd8
- 2.Rxf6#
- 2.Qe4#
- 1...Bd4
- 2.Qc2#
- 1...Bd6
- 2.Rxf6#
- 1...Be7
- 2.Qxd5#
- 1...Sg6
- 2.Rxf6#
- 1...Sf7
- 2.Rxf6#
- 1...Rxc6!
- threat
- 1.Qd7?
- threat
- 2.Re5#
- 2.Rd6#
- 2.Rxf6#
- 2.Qxd5#
- 1...Rxe6
- 2.Qxe6#
- 1...Bxb3
- 2.Re5#
- 2.Rd6#
- 2.Rxf6#
- 1...Re5
- 2.Rxe5#
- 1...Rd4
- 2.Re5#
- 2.Rd6#
- 2.Rxf6#
- 1...Rd1
- 2.Re5#
- 2.Rd6#
- 2.Rxf6#
- 1...Rd2
- 2.Re5#
- 2.Rd6#
- 2.Rxf6#
- 1...Rd3
- 2.Re5#
- 2.Rd6#
- 2.Rxf6#
- 2.Qxd3#
- 1...Rdd6
- 2.Re5#
- 2.Rxd6#
- 2.Rxf6#
- 1...Rad6
- 2.Re5#
- 2.Rxd6#
- 2.Rxf6#
- 1...Bd4
- 2.Re5#
- 2.Rd6#
- 2.Rxf6#
- 1...Bd6
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rxd6#
- 2.Rxf6#
- 2.R6e7#
- 1...Be7
- 2.Re5#
- 2.Qxd5#
- 1...Sg6
- 2.Re5#
- 2.Rd6#
- 2.Rxf6#
- 1...Sf7
- 2.Re5#
- 2.Rd6#
- 2.Rxf6#
- 1...Rxd7!
- threat
- 1.Sd4+?
- Keys
- 1.Re4!
- threat
- 2.Rf4#
- 1...Be7
- 2.Qxd5#
- 1...Rd4
- 2.Qf1#
- 1...Be3
- 2.Qxd5#
- 1...Bd6
- 2.Qd7#
- 1...Sg6
- 2.Bxg4#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- R(e);N_GUARD,P_SPINB(d)::QAB(C),XR(e)
- R(e);N_GUARD,P_SPINB(d)::S(A),XR(e)
- R(g);N_GUARD::R1(E),XP(h)
- B(d);OGATE,P_SPINR(e)::QAR2(C),XR(e)
- B(d);P_SPINR(e)::QAB(C)
- B(d);P_SPINR(e),S_CUTR(g)::R1(E),XP(h)
- P(j);S_CUTR(g)::R1(E),XP(h)
- Tries
- Try
- S(A);CHECK
- Vars
- B(d);P_SPINR(e),XS(A)::QAB(C)
- Refutation
- R(e);P_PINR(E),P_SPINB(d),XS(A)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- R(e);::QAB1(C),XP(c)
- B(a);::QAB1(C),XP(c)
- B(d);::QAB1(C),XP(c)
- Refutation
- R(e);
- Try
- Q(C);
- Threat
- DUALS(4)
- Refutation
- R(e);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- B(a);XS(A)::R1(E),XP(h)
- P(j);XQ(C)::R1(E),XP(h)
- R(e);::R1(E),XP(h)
- R(e);OGATE::QAB1(C)
- B(d);OGATE::QAB(C)
- B(d);::R1(E),XP(h)
- B(d);::QAR2(C),XR(e)
- S(k);::R1(E),XP(h)
- Refutation
- R(g);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(4)
- Vars
- R(g);OGATE,P_SPINR(g),XR(E)::QAB1(C),XR(g)
- R(e);::QAB(C)+R(E),DCHECK,XR(e)
- Refutation
- R(e);XQ(C)
- Try
- Actual
- R(E);
- Threat
- R1(E)
- Vars
- B(d);OGATE,P_SPINR(e)::QAR2(C),XR(e)
- R(e);P_PINS(A),P_SPINB(d)::QAR(C)
- B(d);P_SPINR(e),S_CUTR(g)::QAB(C)
- S(k);SBLOCK::B(D),XP(c)
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).