MESON Chess Problem Database
Problem Display
PID: 178104 (4b2K/B1Q2ppp/7r/3kPPb1/n1p5/n2N1R2/3N2R1/1r5B w - - 0 1)
Kulis, Imants
Sahs (Latvia), 1987
#2
10 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sb4#
- 1...Rc1
- 2.Sb4#
- 1...Rd1
- 2.Sb4#
- 1...Re1
- 2.Sb4#
- 1...Rf1
- 2.Sb4#
- 1...Rg1
- 2.Sb4#
- 1...Rbxh1
- 2.Sb4#
- 1...Rb4
- 2.Sxb4#
- 1...Rhxh1
- 2.Qd6#
- 1...Rh2
- 2.Qd6#
- 1...Rh3
- 2.Qd6#
- 1...Rh4
- 2.Qd6#
- 1...Rh5
- 2.Qd6#
- 1...Rd6
- 2.Qxd6#
- 1...Bf4
- 2.Sxf4#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 2.Qd6#
- 1...Be7
- 2.Sf4#
- 1...Bd8
- 2.Sf4#
- 1...Sc2
- 2.Qxc4#
- 1...Sb5
- 2.Qxc4#
- 1...Sb2
- 2.Sb4#
- 2.Qc5#
- 1...Sc3
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sb6
- 2.Qc5#
- 1...cxd3
- 2.Rxd3#
- 1...f6
- 2.Qd6#
- 1...g6
- 2.Qd6#
- 1...Ra1
- Tries
- 1.Rg1?
- threat
- 2.Rh3#
- 1...Rxg1
- 2.Sb4#
- 1...Rxh1
- 2.Qd6#
- 1...Rhb6
- 2.Rf4#
- 1...Sc5
- 2.Qxc5#
- 1...Sb6
- 2.Qc5#
- 1...Re1
- 2.Sb4#
- 1...Rf1
- 2.Sb4#
- 1...Rh2
- 2.Qd6#
- 1...Rh3
- 2.Rxh3#
- 2.Qd6#
- 1...Rh4
- 2.Qd6#
- 1...Sc3
- 2.Qc5#
- 1...Rbb6!
- threat
- 1.Rh2?
- threat
- 2.Rf1#
- 1...Rxh1
- 2.Sb4#
- 1...Rxh2
- 2.Qd6#
- 1...Rbb6
- 2.Rf4#
- 1...Sc5
- 2.Qxc5#
- 1...Sb6
- 2.Qc5#
- 1...Re1
- 2.Sb4#
- 1...Rf1
- 2.Sb4#
- 2.Rxf1#
- 1...Rg1
- 2.Sb4#
- 1...Rh3
- 2.Qd6#
- 1...Rh4
- 2.Qd6#
- 1...Sc3
- 2.Qc5#
- 1...Rhb6!
- threat
- 1.Rg4?
- threat
- 2.Rd4#
- 1...Rbb6
- 2.Rh3#
- 1...Rh4
- 2.Qd6#
- 1...Rhb6
- 2.Rf1#
- 1...Bf4
- 2.Sxf4#
- 1...Sc2
- 2.Qxc4#
- 1...Sb5
- 2.Qxc4#
- 1...Sc5
- 2.Qxc5#
- 1...Sb6
- 2.Qc5#
- 1...Be3!
- threat
- 1.Rf1?
- threat
- 2.Rh2#
- 1...Rxf1
- 2.Sb4#
- 1...Rxh1
- 2.Qd6#
- 1...Rhb6
- 2.Rg4#
- 1...Sc5
- 2.Qxc5#
- 1...Sb6
- 2.Qc5#
- 1...Re1
- 2.Sb4#
- 1...Rh2
- 2.Rxh2#
- 2.Qd6#
- 1...Rh3
- 2.Qd6#
- 1...Rh4
- 2.Qd6#
- 1...Sc3
- 2.Qc5#
- 1...Rbb6!
- threat
- 1.Rh3?
- threat
- 2.Rg1#
- 1...Rxh1
- 2.Sb4#
- 1...Rxh3
- 2.Qd6#
- 1...Rbb6
- 2.Rg4#
- 1...Sc5
- 2.Qxc5#
- 1...Sb6
- 2.Qc5#
- 1...Re1
- 2.Sb4#
- 1...Rf1
- 2.Sb4#
- 1...Rg1
- 2.Sb4#
- 2.Rxg1#
- 1...Rh4
- 2.Qd6#
- 1...Sc3
- 2.Qc5#
- 1...Rhb6!
- threat
- 1.Qd7+?
- 1...Rd6
- 2.Qxd6#
- 1...Bxd7!
- 1...Rd6
- 1.Rg1?
- Keys
- 1.Rf4!
- threat
- 2.Rd4#
- 1...Bxf4
- 2.Sxf4#
- 1...Rbb6
- 2.Rh2#
- 1...Rh4
- 2.Qd6#
- 1...Rhb6
- 2.Rg1#
- 1...Sc2
- 2.Qxc4#
- 1...Sb5
- 2.Qxc4#
- 1...Sc5
- 2.Qxc5#
- 1...Sb6
- 2.Qc5#
- threat
- 1.Rf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 20
- Sets
- R(a);N_GUARD::S(D)
- R(a);N_GUARD,XB(A)::S(D)
- R(a);N_GUARD::S(D),XR(a)
- R(g);N_GUARD,XB(A)::QAR1(I)
- R(g);N_GUARD::QAR1(I)
- R(g);N_GUARD::QAR1(I),XR(g)
- B(f);N_GUARD::S(D),XB(f)
- B(f);N_GUARD::S(D)
- S(b);N_GUARD::QAB1(I),XP(d)
- S(c);N_GUARD::QAR1(I)
- S(c);N_GUARD::QAR1(I),XS(c)
- P(d);OGATE,XS(D)::R(E),XP(d)
- P(h);S_CUTR(g)::QAR1(I)
- P(i);S_CUTR(g)::QAR1(I)
- Tries
- Try
- R(C);
- Threat
- B(A)+R(E)
- Vars
- R(a);N_GUARD,XR(C)::S(D)
- R(g);N_GUARD,XB(A)::QAR1(I)
- R(g);N_GUARD::B(A)+R(E)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(c);N_GUARD::QAR1(I)
- R(a);N_GUARD::S(D)
- R(g);N_GUARD::QAR1(I)
- Refutation
- R(a);
- Try
- R(C);
- Threat
- B(A)+R(E)
- Vars
- R(a);N_GUARD,XB(A)::S(D)
- R(g);N_GUARD,XR(C)::QAR1(I)
- R(a);N_GUARD::B(A)+R(E)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(c);N_GUARD::QAR1(I)
- R(a);N_GUARD::S(D)
- R(g);N_GUARD::QAR1(I)
- Refutation
- R(g);
- Try
- R(C);
- Threat
- R1(C)
- Vars
- R(a);N_GUARD::B(A)+R(E)
- R(g);N_GUARD::QAR1(I)
- R(g);N_GUARD::B(A)+R(E)
- B(f);N_GUARD::S(D),XB(f)
- S(b);N_GUARD::QAB1(I),XP(d)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(c);N_GUARD::QAR1(I)
- Refutation
- B(f);
- Try
- R(E);
- Threat
- B(A)+R(C)
- Vars
- R(a);N_GUARD,XR(E)::S(D)
- R(g);N_GUARD,XB(A)::QAR1(I)
- R(g);N_GUARD::B(A)+R(C)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(c);N_GUARD::QAR1(I)
- R(a);N_GUARD::S(D)
- R(g);N_GUARD::QAR1(I)
- Refutation
- R(a);
- Try
- R(E);
- Threat
- B(A)+R(C)
- Vars
- R(a);N_GUARD,XB(A)::S(D)
- R(g);N_GUARD,XR(E)::QAR1(I)
- R(a);N_GUARD::B(A)+R(C)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(c);N_GUARD::QAR1(I)
- R(a);N_GUARD::S(D)
- R(g);N_GUARD::QAR1(I)
- Refutation
- R(g);
- Try
- Q(I);CHECK
- Vars
- R(g);N_GUARD,P_SPINR(g)::QAR1(I),XR(g)
- Refutation
- B(k);XQ(I)
- Try
- Actual
- R(E);
- Threat
- R1(E)
- Vars
- B(f);XR(E)::S(D),XB(f)
- R(a);N_GUARD::B(A)+R(C)
- R(g);N_GUARD::QAR1(I)
- R(g);N_GUARD::B(A)+R(C)
- S(b);N_GUARD::QAB1(I),XP(d)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(c);N_GUARD::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).