MESON Chess Problem Database
Problem Display
PID: 10247 (2R5/8/2p2bP1/KpPk1P2/1P3Q2/2Rn1NPN/4q3/1B6 w - - 0 1)
Parthasarathy, Dr Mukkur
1st HM., Die Schwalbe, 1963
#2
12 + 6
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
| 133 | The Problemist Supplement | 2005 |
| 133 | The Problemist Supplement | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Ba2#
- 1...Qxf3
- 2.Ba2#
- 1...Qe1
- 2.Ba2#
- 1...Qa2+
- 2.Bxa2#
- 1...Qe3
- 2.Ba2#
- 1...Qe4
- 2.Qd6#
- 1...Qe5
- 2.Ba2#
- 1...Qe6
- 2.Ba2#
- 1...Qe7
- 2.Ba2#
- 1...Qe8
- 2.Ba2#
- 1...Bxc3
- 2.Rd8#
- 1...Bd4
- 2.Rd8#
- 2.Qxd4#
- 1...Bh4
- 2.Qd4#
- 1...Bg5
- 2.Qd4#
- 1...Be7
- 2.Qd4#
- 1...Bg7
- 2.Rd8#
- 1...Bd8+
- 2.Rxd8#
- 1...Bh8
- 2.Rd8#
- 1...Sc1
- 2.Qd6#
- 1...Se1
- 2.Qd6#
- 1...Sb2
- 2.Qd6#
- 1...Sf2
- 2.Qd6#
- 1...Sxb4
- 2.Qd6#
- 1...Sxf4
- 2.Sxf4#
- 1...Sxc5
- 2.Rxc5#
- 1...Se5
- 2.Qd4#
- 1...Qf1
- Tries
- 1.Rxd3+?
- 1...Bd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Qxd3!
- 1...Bd4
- 1.Rc7?
- threat
- 2.Rd7#
- 1...Qa2+
- 2.Bxa2#
- 1...Sxc5
- 2.Rxc5#
- 1...Qe5
- 2.Ba2#
- 1...Qe6
- 2.Ba2#
- 1...Qe7
- 2.Ba2#
- 1...Qe8
- 2.Ba2#
- 1...Be7
- 2.Qd4#
- 1...Bd8
- 2.Qd4#
- 1...Se5
- 2.Qd4#
- 1...Be5!
- threat
- 1.Re8?
- threat
- 2.Qd6#
- 1...Qa2+
- 2.Bxa2#
- 1...Bd8+
- 2.Rxd8#
- 1...Qxe8
- 2.Ba2#
- 1...Bxc3
- 2.Rd8#
- 1...Sxf4
- 2.Sxf4#
- 1...Sxc5
- 2.Rxc5#
- 1...Qe5
- 2.Ba2#
- 1...Qe6
- 2.Ba2#
- 1...Qe7
- 2.Ba2#
- 1...Be7
- 2.Qd4#
- 1...Se5
- 2.Qd4#
- 1...Be5!
- threat
- 1.Rxd3+?
- Keys
- 1.g7!
- 1...Qa2+
- 2.Bxa2#
- 1...Bd8+
- 2.Rxd8#
- 1...Qxf3
- 2.Ba2#
- 2.g8Q#
- 2.g8B#
- 1...Bxc3
- 2.Rd8#
- 1...Bxg7
- 2.Rd8#
- 1...Sxb4
- 2.Qd6#
- 1...Sxf4
- 2.Sxf4#
- 1...Sxc5
- 2.Rxc5#
- 1...Qd1
- 2.g8Q#
- 2.g8B#
- 1...Qf1
- 2.Ba2#
- 2.g8Q#
- 2.g8B#
- 1...Qe1
- 2.Ba2#
- 1...Qb2
- 2.g8Q#
- 2.g8B#
- 1...Qc2
- 2.g8Q#
- 2.g8B#
- 1...Qd2
- 2.g8Q#
- 2.g8B#
- 1...Qf2
- 2.g8Q#
- 2.g8B#
- 1...Qg2
- 2.g8Q#
- 2.g8B#
- 1...Qh2
- 2.g8Q#
- 2.g8B#
- 1...Qe3
- 2.Ba2#
- 1...Qe4
- 2.Qd6#
- 1...Qe5
- 2.Ba2#
- 1...Qe6
- 2.Ba2#
- 1...Qe7
- 2.Ba2#
- 1...Qe8
- 2.Ba2#
- 1...Bd4
- 2.Rd8#
- 2.Qxd4#
- 1...Bh4
- 2.Qd4#
- 1...Be5
- 2.g8Q#
- 2.g8B#
- 1...Bg5
- 2.Qd4#
- 1...Be7
- 2.Qd4#
- 1...Sc1
- 2.Qd6#
- 1...Se1
- 2.Qd6#
- 1...Sb2
- 2.Qd6#
- 1...Sf2
- 2.Qd6#
- 1...Se5
- 2.Qd4#
- 1...Qa2+
- 1.g7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- Q(a);N_GUARD::B(A)
- Q(a);N_GUARD,XS(C)::B(A)
- Q(a);CHECK,N_GUARD::B(A),XQ(a)
- Q(a);SBLOCK::QAR1(G)
- B(f);N_GUARD,P_PINP(F),XR(B)::R(L)
- B(f);N_GUARD::QAR1(G)
- B(f);N_GUARD::R(L)
- B(f);CHECK,N_GUARD::R(L),XB(f)
- S(b);::QAR1(G)
- S(b);XP(F)::QAR1(G)
- S(b);XQ(G)::S(E),XS(b)
- S(b);OGATE,XP(I)::R1(B),XS(b)
- S(b);S_CUTB(f)::QAR1(G)
- Tries
- Try
- R(B);CHECK,XS(b)
- Refutation
- Q(a);XR(B)
- Try
- R(L);
- Threat
- R(L)
- Vars
- Q(a);CHECK,N_GUARD::B(A),XQ(a)
- S(b);OGATE,XP(I)::R1(B),XS(b)
- Q(a);N_GUARD::B(A)
- B(f);N_GUARD::QAR1(G)
- B(f);N_GUARD,P_PINR(L)::QAR1(G)
- S(b);S_CUTB(f)::QAR1(G)
- Refutation
- B(f);
- Try
- R(L);
- Threat
- QAR1(G)
- Vars
- Q(a);CHECK,N_GUARD::B(A),XQ(a)
- B(f);CHECK,N_GUARD::R(L),XB(f)
- Q(a);N_GUARD,XR(L)::B(A)
- B(f);N_GUARD,P_PINP(F),XR(B)::R(L)
- S(b);XQ(G)::S(E),XS(b)
- S(b);OGATE,XP(I)::R1(B),XS(b)
- Q(a);N_GUARD::B(A)
- B(f);N_GUARD::QAR1(G)
- S(b);S_CUTB(f)::QAR1(G)
- Refutation
- B(f);
- Try
- Actual
- P(K);
- Vars
- Q(a);CHECK,N_GUARD::B(A),XQ(a)
- B(f);CHECK,N_GUARD::R(L),XB(f)
- B(f);N_GUARD,P_PINP(F),XR(B)::R(L)
- B(f);N_GUARD,XP(K)::R(L)
- S(b);XP(F)::QAR1(G)
- S(b);XQ(G)::S(E),XS(b)
- S(b);OGATE,XP(I)::R1(B),XS(b)
- Q(a);N_GUARD::P=Q
- Q(a);N_GUARD::B(A)
- Q(a);SBLOCK::QAR1(G)
- B(f);N_GUARD::QAR1(G)
- B(f);S_CUTQ(a)::P=Q
- S(b);::QAR1(G)
- S(b);S_CUTB(f)::QAR1(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).