MESON Chess Problem Database
Problem Display
PID: 261490 (1b3BBr/1bp5/4R1n1/1p1k2p1/3p3p/1Pp1R3/1P3P2/Q6K w - - 0 1)
Racz, Erich
Neue Zurcher Zeitung, 1976
#2
9 + 11
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rh5
- 2.Ra6#
- 2.Rb6#
- 2.Rf6#
- 2.Rxg6#
- 1...Rh6
- 2.Ra6#
- 2.Rb6#
- 2.Rf6#
- 2.Rxg6#
- 1...Bc6
- 2.R6e5#
- 1...Sf4
- 2.R3e5#
- 1...Se5
- 2.R3xe5#
- 1...Se7
- 2.R3e5#
- 1...Sxf8
- 2.R3e5#
- 1...dxe3
- 2.Qd1#
- 1...d3
- 2.Rxd3#
- 1...c5
- 2.Rd6#
- 1...c6
- 2.R6e5#
- 1...Rh5
- Tries
- 1.Rc6+?
- 1...Rxg8
- 2.Rc5#
- 1...Kxc6!
- 1...Rxg8
- 1.Qb1?
- threat
- 2.Qe4#
- 1...Sxf8
- 2.R3e5#
- 2.Qf5#
- 1...Se7
- 2.R3e5#
- 1...d3
- 2.Rxd3#
- 2.Qxd3#
- 1...c2!
- threat
- 1.Qd1?
- threat
- 2.Qf3#
- 1...Sxf8
- 2.R3e5#
- 1...Se7
- 2.R3e5#
- 1...d3
- 2.Rxd3#
- 2.Qxd3#
- 1...Se5
- 2.R3xe5#
- 1...g4!
- threat
- 1.Qf1?
- threat
- 2.Qg2#
- 1...Sxf8
- 2.R3e5#
- 1...dxe3
- 2.Qd3#
- 2.Qd1#
- 1...Se7
- 2.R3e5#
- 1...d3
- 2.Rxd3#
- 2.Qxd3#
- 1...Sf4
- 2.R3e5#
- 1...Se5
- 2.R3xe5#
- 1...h3!
- threat
- 1.Qg1?
- threat
- 2.Qg2#
- 1...Sxf8
- 2.R3e5#
- 2.Qxg5#
- 1...dxe3
- 2.Qd1#
- 1...Se7
- 2.R3e5#
- 1...d3
- 2.Rxd3#
- 1...Sf4
- 2.R3e5#
- 2.Qxg5#
- 1...Se5
- 2.R3xe5#
- 1...h3!
- threat
- 1.Qa3?
- threat
- 2.Rd6#
- 2.Qc5#
- 1...Rxg8
- 2.Qc5#
- 1...Sxf8
- 2.R3e5#
- 2.Rd6#
- 1...dxe3
- 2.Qc5#
- 1...Ba7
- 2.Rd6#
- 1...Se7
- 2.R3e5#
- 2.Rd6#
- 1...c5
- 2.Rd6#
- 2.Qxc5#
- 1...b4!
- threat
- 1.Qa7?
- threat
- 2.Rd6#
- 2.Qc5#
- 1...Rxg8
- 2.Qc5#
- 1...Sxf8
- 2.R3e5#
- 1...dxe3
- 2.Qc5#
- 1...Se7
- 2.R3e5#
- 1...c5
- 2.Rd6#
- 2.Qxc5#
- 2.Qxb7#
- 1...Bxa7!
- threat
- 1.b4?
- threat
- 2.Rd6#
- 2.Qa2#
- 1...Kc4+
- 2.Rc6#
- 1...Rxg8
- 2.Qa2#
- 1...Sxf8
- 2.Qa2#
- 1...d3
- 2.Rd6#
- 1...Se5
- 2.Rd6#
- 1...Se7
- 2.Qa2#
- 1...c5
- 2.Rd6#
- 1...dxe3!
- threat
- 1.Rc6+?
- Keys
- 1.Kh2!
- threat
- 2.Qh1#
- 1...c5+
- 2.Rd6#
- 1...c6+
- 2.R6e5#
- 1...Sxf8
- 2.R3e5#
- 1...dxe3
- 2.Qd1#
- 1...Se7
- 2.R3e5#
- 1...d3
- 2.Rxd3#
- 1...Sf4
- 2.R3e5#
- 1...Se5
- 2.R3xe5#
- threat
- 1.Kh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- B(h);SBLOCK::B(I)+R(G),DCHECK
- S(g);N_GUARD::R1(F)
- S(g);N_GUARD::R1(F),XS(g)
- S(g);N_GUARD,XB(H)::R1(F)
- P(b);OGATEB,XR(F)::QAR(A)
- P(b);OGATEB::R(F),XP(b)
- P(i);SBLOCK::B(I)+R(G),DCHECK
- Tries
- Try
- R(G);CHECK
- Vars
- R(k);XB(I)::R1(G)
- Refutation
- K(e);S_FLIGHT,XR(G)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(g);N_GUARD::R1(F)
- Refutation
- P(a);
- Try
- Q(A);P_PINP(b)
- Threat
- QAB(A)
- Vars
- S(g);N_GUARD,XB(H)::R1(F)
- S(g);N_GUARD::R1(F)
- S(g);N_GUARD::R1(F),XS(g)
- Refutation
- P(f);
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(g);N_GUARD,XB(H)::R1(F)
- S(g);N_GUARD::R1(F)
- S(g);N_GUARD::R1(F),XS(g)
- Refutation
- P(c);
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- P(b);OGATEB,XR(F)::QAR(A)
- S(g);N_GUARD::R1(F)
- P(b);OGATEB::R(F),XP(b)
- S(g);N_GUARD::R1(F),XS(g)
- Refutation
- P(c);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(k);XB(I)::QAR1(A)
- P(b);XR(F)::QAR1(A)
- B(j);::B(I)+R(G),DCHECK
- Refutation
- P(d);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(k);XB(I)::QAR1(A)
- S(g);N_GUARD,XB(H)::R1(F)
- P(b);XR(F)::QAR1(A)
- S(g);N_GUARD::R1(F)
- Refutation
- B(j);XQ(A)
- Try
- P(E);
- Threat
- DUALS(2)
- Vars
- K(e);CHECK,N_GUARD,S_FLIGHT::B(I)+R(G),DCHECK
- R(k);XB(I)::QAB(A)
- S(g);XB(H)::QAB(A)
- P(b);::B(I)+R(G),DCHECK
- S(g);::B(I)+R(G),DCHECK
- S(g);::QAB(A)
- P(i);::B(I)+R(G),DCHECK
- Refutation
- P(b);XR(F)
- Try
- Actual
- K(B);P-FLIGHT
- Threat
- QAB(A)
- Vars
- P(i);CHECK,SBLOCK::B(I)+R(G),DCHECK
- S(g);N_GUARD,XB(H)::R1(F)
- P(b);OGATEB,XR(F)::QAR(A)
- S(g);N_GUARD::R1(F)
- P(b);OGATEB::R(F),XP(b)
- S(g);N_GUARD::R1(F),XS(g)
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).