MESON Chess Problem Database
Problem Display
PID: 242217 (1Kb5/3p2P1/1ppp4/2Pk1P2/P3r3/R1BN4/3RQ2b/1r6 w - - 0 1)
Kisis, Imants J
Magyar Sakkelet, 1969
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Qxe4#
- 1...Rxa4
- 2.g8Q#
- 2.g8B#
- 1...Rb4
- 2.g8Q#
- 2.g8B#
- 1...Rc4
- 2.g8Q#
- 2.g8B#
- 1...Rd4
- 2.g8Q#
- 2.g8B#
- 1...Rf4
- 2.g8Q#
- 2.g8B#
- 1...Rh4
- 2.g8Q#
- 2.g8B#
- 1...Be5
- 2.g8Q#
- 2.g8B#
- 1...bxc5+
- 2.Sb4#
- 1...dxc5+
- 2.Sf4#
- 1...Kc4
- Tries
- 1.Sf2+?
- 1...Kxc5
- 2.Sxe4#
- 1...Rd4!
- 1...Kxc5
- 1.Qf3?
- threat
- 2.g8Q#
- 2.g8B#
- 1...bxc5+
- 2.Sb2#
- 1...dxc5+
- 2.Se5#
- 1...Kc4
- 2.Qxe4#
- 1...Ra1
- 2.g8Q#
- 2.g8B#
- 1...Rc1
- 2.g8Q#
- 2.g8B#
- 1...Rd1
- 2.g8Q#
- 2.g8B#
- 1...Re1
- 2.g8Q#
- 2.g8B#
- 1...Rf1
- 2.g8Q#
- 2.g8B#
- 1...Rh1
- 2.g8Q#
- 2.g8B#
- 1...Rb2
- 2.g8Q#
- 2.g8B#
- 1...Rb3
- 2.g8Q#
- 2.g8B#
- 1...Rb4
- 2.g8Q#
- 2.g8B#
- 1...Rb5
- 2.g8Q#
- 2.g8B#
- 1...Bg1
- 2.g8Q#
- 2.g8B#
- 1...Bg3
- 2.g8Q#
- 2.g8B#
- 1...Bf4
- 2.g8Q#
- 2.g8B#
- 1...Be5
- 2.g8Q#
- 2.g8B#
- 1...Ba6
- 2.g8Q#
- 2.g8B#
- 1...Bb7
- 2.g8Q#
- 2.g8B#
- 1...b5
- 2.g8Q#
- 2.g8B#
- 1...Rg1!
- threat
- 1.Sf2+?
- Keys
- 1.Qg2!
- threat
- 2.g8Q#
- 2.g8B#
- 1...bxc5+
- 2.Sb2#
- 1...dxc5+
- 2.Se5#
- 1...Kc4
- 2.Qxe4#
- 1...Ra1
- 2.g8Q#
- 2.g8B#
- 1...Rc1
- 2.g8Q#
- 2.g8B#
- 1...Rd1
- 2.g8Q#
- 2.g8B#
- 1...Re1
- 2.g8Q#
- 2.g8B#
- 1...Rf1
- 2.g8Q#
- 2.g8B#
- 1...Rg1
- 2.g8Q#
- 2.g8B#
- 1...Rh1
- 2.g8Q#
- 2.g8B#
- 1...Rb2
- 2.g8Q#
- 2.g8B#
- 1...Rb3
- 2.g8Q#
- 2.g8B#
- 1...Rb4
- 2.g8Q#
- 2.g8B#
- 1...Rb5
- 2.g8Q#
- 2.g8B#
- 1...Bg1
- 2.g8Q#
- 2.g8B#
- 1...Bg3
- 2.g8Q#
- 2.g8B#
- 1...Bf4
- 2.g8Q#
- 2.g8B#
- 1...Be5
- 2.g8Q#
- 2.g8B#
- 1...Ba6
- 2.g8Q#
- 2.g8B#
- 1...Bb7
- 2.g8Q#
- 2.g8B#
- 1...b5
- 2.g8Q#
- 2.g8B#
- threat
- 1.Qg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(d);S_FLIGHT::QAR2(B),XR(c)
- R(c);N_GUARD,XP(F)::P=Q
- R(c);N_GUARD::P=Q
- R(c);N_GUARD,SBLOCK::P=Q
- B(b);S_CUTR(c)::P=Q
- P(e);CHECK,SBLOCK,XP(G)::R(A)+S(E),DCHECK
- P(g);CHECK,SBLOCK,XP(G)::R(A)+S(E),DCHECK
- Tries
- Try
- S(E);CHECK
- Vars
- K(d);P-FLIGHT,XP(G)::S(E),XR(c)
- Refutation
- R(c);P_SPINR(c)
- Try
- Q(B);P_PINR(c)
- Threat
- P=Q
- Vars
- P(e);CHECK,SBLOCK,XP(G)::R(A)+S(E)
- P(g);CHECK,SBLOCK,XP(G)::R(A)+S(E)
- K(d);N_SPINR(c),S_FLIGHT::QAR2(B),XR(c)
- R(a);::P=Q
- B(b);::P=Q
- B(i);::P=Q
- P(e);::P=Q
- Refutation
- R(a);
- Try
- Actual
- Q(B);P_PINR(c)
- Threat
- P=Q
- Vars
- P(e);CHECK,SBLOCK,XP(G)::R(A)+S(E)
- P(g);CHECK,SBLOCK,XP(G)::R(A)+S(E)
- K(d);N_SPINR(c),S_FLIGHT::QAR2(B),XR(c)
- R(a);::P=Q
- B(b);::P=Q
- B(i);::P=Q
- P(e);::P=Q
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).