MESON Chess Problem Database
Problem Display
PID: 99383 (r7/2R1P1n1/p6Q/4Kp1N/1b4B1/3k4/1PR3r1/2qN4 w - - 0 1)
Santa, Imre
Magyar Sakkelet, 1979
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxb2+
- 2.Sxb2#
- 1...Qe3+
- 2.Qxe3#
- 1...Qf4+
- 2.Sxf4#
- 1...Qa1
- 2.Sf4#
- 2.Qe3#
- 1...Qb1
- 2.Sf4#
- 2.Qe3#
- 1...Qxc2
- 2.Qe3#
- 1...Rg1
- 2.Sf2#
- 2.Be2#
- 1...Rd2
- 2.Sf4#
- 2.Qe3#
- 1...Re2+
- 2.Bxe2#
- 1...Rf2
- 2.Sxf2#
- 1...Rg3
- 2.Sf2#
- 2.Be2#
- 1...Rxg4
- 2.Sf2#
- 1...Rc8
- 2.Qxa6#
- 1...Rd8
- 2.Qxa6#
- 1...Re8
- 2.Qxa6#
- 1...Rf8
- 2.Qxa6#
- 1...Rg8
- 2.Qxa6#
- 1...Rh8
- 2.Qxa6#
- 1...Be1
- 2.Qd6#
- 1...Bd2
- 2.Qd6#
- 1...Ba3
- 2.R7c3#
- 1...Bc3+
- 2.R7xc3#
- 1...Ba5
- 2.Qd6#
- 1...Bd6+
- 2.Qxd6#
- 1...Bxe7
- 2.R7c3#
- 1...Sxh5
- 2.Bxf5#
- 1...Se6
- 2.Bxf5#
- 1...Se8
- 2.Bxf5#
- 1...Qxb2+
- Tries
- 1.Rd2+?
- 1...Rxd2
- 2.Sf4#
- 2.Qe3#
- 1...Bxd2
- 2.Qd6#
- 1...Qxd2!
- 1...Rxd2
- 1.Qxc1?
- threat
- 2.Sf4#
- 2.Qe3#
- 1...Re2+
- 2.Bxe2#
- 1...Bc3+
- 2.R2xc3#
- 2.R7xc3#
- 1...Rxg4
- 2.Sf2#
- 2.Qe3#
- 1...Sxh5
- 2.Bxf5#
- 2.Qe3#
- 1...Rd2
- 2.Sf4#
- 1...Rf2
- 2.Sxf2#
- 2.Qe3#
- 1...Rg3
- 2.Sf2#
- 2.Sf4#
- 2.Be2#
- 1...Bd2
- 2.Rd7#
- 1...Bc5
- 2.Sf4#
- 2.Rc3#
- 1...Se6
- 2.Bxf5#
- 2.Qe3#
- 1...f4
- 2.Sxf4#
- 1...Bd6+!
- threat
- 1.Qf4?
- threat
- 2.Qc4#
- 2.Qd4#
- 1...Qxb2+
- 2.Sxb2#
- 1...Qe3+
- 2.Qxe3#
- 1...Qxf4+
- 2.Sxf4#
- 1...Re2+
- 2.Bxe2#
- 1...Bc3+
- 2.R7xc3#
- 1...Qxd1
- 2.Qd4#
- 1...Qxc2
- 2.Qe3#
- 2.Qd4#
- 1...Rxc2
- 2.Qd4#
- 1...Rxg4
- 2.Sf2#
- 2.Qf1#
- 1...Bc5
- 2.Qc4#
- 1...Rd8
- 2.Qc4#
- 1...Se6
- 2.Bxf5#
- 2.Qc4#
- 2.Qxf5#
- 1...Bd6+!
- threat
- 1.Rd2+?
- Keys
- 1.Qb6!
- threat
- 2.Qd4#
- 1...Qxb2+
- 2.Sxb2#
- 1...Qe3+
- 2.Qxe3#
- 1...Qf4+
- 2.Sxf4#
- 1...Re2+
- 2.Bxe2#
- 1...Bc3+
- 2.R7xc3#
- 1...Bd6+
- 2.Qxd6#
- 1...Rxg4
- 2.Sf2#
- 1...Bc5
- 2.Qb3#
- 1...Rd8
- 2.Qxa6#
- 1...Se6
- 2.Bxf5#
- threat
- 1.Qb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 14
- Sets
- Q(a);CHECK,XP(B)::S(A),XQ(a)
- Q(a);CHECK,N_GUARD::QAR1(G),XQ(a)
- Q(a);CHECK,N_GUARD::S(F),XQ(a)
- Q(a);N_GUARD,XR(C)::QAR1(G)
- R(b);CHECK,N_GUARD::B(D),XR(b)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD,XB(D)::S(A)
- R(h);N_GUARD::QAB(G),XP(f)
- R(h);N_GUARD,P_PINP(I)::QAB(G),XP(f)
- B(d);N_GUARD::QAR(G)
- B(d);N_GUARD::R1(H)
- B(d);CHECK,N_GUARD::R1(H),XB(d)
- B(d);CHECK,N_GUARD::QAR(G),XB(d)
- B(d);N_GUARD,XP(I)::R1(H)
- S(g);N_GUARD,XS(F)::B(D),XP(e)
- S(g);N_GUARD::B(D),XP(e)
- Tries
- Try
- R(C);CHECK
- Vars
- B(d);SBLOCK,XR(C)::QAR(G)
- Refutation
- Q(a);XR(C)
- Try
- Q(G);XQ(a)
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,N_GUARD::B(D),XR(b)
- R(b);::S(F)
- B(d);N_GUARD::R(H)
- P(e);::S(F),XP(e)
- Refutation
- B(d);CHECK
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,XP(B)::S(A),XQ(a)
- Q(a);CHECK,N_GUARD::QAR1(G),XQ(a)
- Q(a);CHECK,XQ(G)::S(F),XQ(a)
- R(b);CHECK,N_GUARD::B(D),XR(b)
- B(d);CHECK,N_GUARD::R1(H),XB(d)
- Q(a);XS(A)::QAR1(G)
- R(b);XR(C)::QAR1(G)
- B(d);::QAB1(G)
- R(h);::QAB1(G)
- Refutation
- B(d);CHECK
- Try
- Actual
- Q(G);
- Threat
- QAR1(G)
- Vars
- Q(a);CHECK,XP(B)::S(A),XQ(a)
- Q(a);CHECK,N_GUARD::QAR1(G),XQ(a)
- Q(a);CHECK,N_GUARD::S(F),XQ(a)
- R(b);CHECK,N_GUARD::B(D),XR(b)
- B(d);CHECK,N_GUARD::R1(H),XB(d)
- B(d);CHECK,N_GUARD::QAR(G),XB(d)
- R(b);N_GUARD,XB(D)::S(A)
- B(d);OGATE::QAR2(G)
- R(h);N_GUARD::QAB(G),XP(f)
- S(g);N_GUARD::B(D),XP(e)
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).