MESON Chess Problem Database
Problem Display
PID: 117957 (3Rr1bb/PR2Ppn1/K2Q3r/7p/1pN1k2P/3p1pP1/BB1P1n2/3N2q1 w - - 0 1)
Paros, Gyorgy
Debreceni Kereskedok, 1939
#2
13 + 13
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxd6+
- 2.Sxd6#
- 1...Rh7
- 2.Qf4#
- 2.Qe5#
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...f6
- 2.Qf4#
- 1...Rxd6+
- Tries
- 1.Sxf2+?
- 1...Kf5
- 2.Se3#
- 2.Rb5#
- 1...Qxf2!
- 1...Kf5
- 1.Sc3+?
- 1...Kf5
- 2.Se3#
- 1...bxc3!
- 1...Kf5
- 1.Rb5?
- threat
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Rxd6+
- 2.Sxd6#
- 1...Qxd1
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Qxg3
- 2.a8Q#
- 2.a8B#
- 1...Rxd8
- 2.Re5#
- 1...Sxd1
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Qh2
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Qe1
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Qf1
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Qh1
- 2.Sxf2#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Qg2
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Re6
- 2.a8Q#
- 2.a8B#
- 1...Rf6
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Rg6
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Rh7
- 2.Re5#
- 2.Qf4#
- 2.Qe5#
- 2.Qd4#
- 2.Qd5#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rf8
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Bh7
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Sh1
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Sh3
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Sg4
- 2.a8Q#
- 2.a8B#
- 1...Sf5
- 2.a8Q#
- 2.a8B#
- 1...Se6
- 2.Qd5#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...b3
- 2.Sc3#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...f5
- 2.Re5#
- 1...f6
- 2.Qf4#
- 2.Qd4#
- 1...Rxe7!
- threat
- 1.Rb6?
- threat
- 2.Qf4#
- 2.Qe5#
- 2.Qd5#
- 1...Kf5
- 2.Qf4#
- 1...Rxd6
- 2.Sxd6#
- 1...Rxe7
- 2.Qf4#
- 2.Qd5#
- 1...Rxd8
- 2.Qe5#
- 1...Re6
- 2.Qf4#
- 2.Qd5#
- 1...Rf6
- 2.Qe5#
- 2.Qd5#
- 1...Sh3
- 2.Qe5#
- 2.Qxd3#
- 2.Qd5#
- 1...Sg4
- 2.Qf4#
- 2.Qxd3#
- 2.Qd5#
- 1...Sf5
- 2.Qf4#
- 2.Qd5#
- 2.a8Q#
- 2.a8B#
- 1...Se6
- 2.Qd5#
- 1...f5
- 2.Qf4#
- 2.Qe5#
- 2.Qd4#
- 1...f6
- 2.Qf4#
- 1...Qxg3!
- threat
- 1.Qc6+?
- 1...Kf5
- 2.Sde3#
- 2.Sce3#
- 1...Rxc6+!
- 1...Kf5
- 1.Qe6+?
- 1...Sxe6
- 2.Sd6#
- 1...fxe6
- 2.Sd6#
- 1...Rxe6+!
- 1...Sxe6
- 1.Qg6+?
- 1...Sf5
- 2.Sd6#
- 1...fxg6
- 2.Sd6#
- 1...f5
- 2.Sd6#
- 2.Rd4#
- 1...Rxg6+!
- 1...Sf5
- 1.Sxf2+?
- Keys
- 1.Rxb4!
- threat
- 2.Sce3#
- 1...Rxd6+
- 2.Sxd6#
- 1...Kf5
- 2.Sce3#
- 1...Sf5
- 2.a8Q#
- 2.a8B#
- 1...Se6
- 2.Qd5#
- 1...f5
- 2.Sc3#
- 1...f6
- 2.Qf4#
- threat
- 1.Rxb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(h);CHECK,XQ(I)::S(F),XR(h)
- S(j);N_PINQ(I)::QAB1(I)
- P(i);N_PINQ(I)::QAR1(I)
- Tries
- Try
- S(A);CHECK,XS(b)
- Refutation
- Q(a);XS(A)
- Try
- S(A);CHECK
- Vars
- K(f);S_FLIGHT::S(F)
- Refutation
- P(e);XS(A)
- Try
- R(K);
- Threat
- DUALS(3)
- Vars
- R(h);CHECK,XQ(I)::S(F),XR(h)
- Q(a);XP(E)::P=Q
- R(k);XR(M)::R1(K)
- R(h);::P=Q
- S(b);::P=Q
- S(j);::P=Q
- P(i);::R1(K)
- Refutation
- R(k);XP(L)
- Try
- R(K);N_SPINQ(I)
- Threat
- DUALS(3)
- Vars
- K(f);S_FLIGHT::QAR1(I)
- R(h);P_PINR(K),XQ(I)::S(F),XR(h)
- R(k);XR(M)::QAR1(I)
- S(j);::QAB1(I)
- P(i);::QAR1(I)
- Refutation
- Q(a);XP(E)
- Try
- Q(I);CHECK
- Refutation
- R(h);CHECK,XQ(I)
- Try
- Q(I);CHECK
- Vars
- S(j);XQ(I)::S(F)
- P(i);XQ(I)::S(F)
- Refutation
- R(h);CHECK,XQ(I)
- Try
- Q(I);CHECK
- Vars
- S(j);P_SPINS(j)::S(F)
- P(i);XQ(I)::S(F)
- Refutation
- R(h);CHECK,XQ(I)
- Try
- Actual
- R(K);XP(e)
- Threat
- R(K)+S(F)
- Vars
- R(h);CHECK,XQ(I)::R(K)+S(F),DCHECK,XR(h)
- K(f);S_FLIGHT::S(F)
- S(j);SBLOCK::P=Q
- S(j);N_PINQ(I)::QAB1(I)
- P(i);SBLOCK::S(A)
- P(i);N_PINQ(I)::QAR1(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).