MESON Chess Problem Database
Problem Display
PID: 262844 (8/N1p1Kp1B/1R6/n1P1k1p1/7R/5P2/2PQ1pqN/b2nr3 w - - 0 1)
Viksna, Kristaps
Szachy, 1976
#2
10 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Sg4#
- 1...Qh1
- 2.Sg4#
- 1...Qxf3
- 2.Sxf3#
- 1...Qg4
- 2.Sxg4#
- 1...Rf1
- 2.Re4#
- 1...Rg1
- 2.Re4#
- 1...Rh1
- 2.Re4#
- 1...Re4
- 2.Rxe4#
- 1...Bd4
- 2.Qxd4#
- 1...Sb2
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Se3
- 2.Re4#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6+
- 2.Sxc6#
- 1...Sb7
- 2.Sc6#
- 1...gxh4
- 2.f4#
- 1...g4
- 2.f4#
- 1...cxb6
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...f5
- 2.Re6#
- 1...f6
- 2.Re6#
- 1...Qf1
- Tries
- 1.Kxf7?
- threat
- 2.Re6#
- 1...Qxf3+
- 2.Sxf3#
- 1...cxb6
- 2.Qd6#
- 1...Bd4
- 2.Qxd4#
- 1...Qg4
- 2.Sxg4#
- 1...Sc6
- 2.Sxc6#
- 1...c6
- 2.Qd6#
- 1...Qh3!
- threat
- 1.Rb2?
- threat
- 2.Qd4#
- 1...Sc6+
- 2.Sxc6#
- 1...gxh4
- 2.f4#
- 1...Qg4
- 2.Sxg4#
- 1...Re4
- 2.Rxe4#
- 1...Sb3
- 2.Sc6#
- 1...g4
- 2.f4#
- 1...Bxb2!
- threat
- 1.Rd6?
- threat
- 2.Rd5#
- 2.Qd5#
- 1...Sc6+
- 2.Sxc6#
- 1...Qxf3
- 2.Sxf3#
- 1...gxh4
- 2.Rd5#
- 2.f4#
- 1...cxd6
- 2.Qxd6#
- 1...Qg4
- 2.Sxg4#
- 2.Rd5#
- 1...Bd4
- 2.Qxd4#
- 1...Sc3
- 2.Qd4#
- 1...Se3
- 2.Re4#
- 1...g4
- 2.Rd5#
- 2.f4#
- 1...c6!
- threat
- 1.Rf6?
- threat
- 2.Rf5#
- 1...Sc6+
- 2.Sxc6#
- 1...Qxf3
- 2.Sxf3#
- 1...Qg4
- 2.Sxg4#
- 1...Se3
- 2.Re4#
- 1...Qh3!
- threat
- 1.Qxg5+?
- 1...f5
- 2.Qxf5#
- 1...Qxg5+!
- 1...f5
- 1.c3?
- threat
- 2.Qd4#
- 1...Sc6+
- 2.Sxc6#
- 1...Qg4
- 2.Sxg4#
- 1...Re4
- 2.Rxe4#
- 1...Sb3
- 2.Sc6#
- 1...Bxc3!
- threat
- 1.Kxf7?
- Keys
- 1.c4!
- threat
- 2.Qd5#
- 1...Sc6+
- 2.Sxc6#
- 1...Qxf3
- 2.Sxf3#
- 1...Sxc4
- 2.Sc6#
- 1...gxh4
- 2.f4#
- 1...Qg4
- 2.Sxg4#
- 1...Bd4
- 2.Qxd4#
- 1...Sc3
- 2.Qd4#
- 1...Se3
- 2.Re4#
- 1...g4
- 2.f4#
- 1...c6
- 2.Qd6#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- Q(e);N_GUARD::S(C)
- Q(e);XP(D)::S(C),XQ(e)
- Q(e);N_GUARD::S(C),XQ(e)
- R(c);N_GUARD::R1(E)
- R(c);N_GUARD::R1(E),XR(c)
- B(a);N_GUARD::QAB1(B),XB(a)
- S(b);S_CUTB(a)::QAB1(B)
- S(b);S_CUTR(c)::R1(E)
- S(f);N_GUARD::S(H)
- S(f);CHECK,N_GUARD::S(H),XS(f)
- P(h);N_GUARD,XR(E)::P(D)
- P(h);N_GUARD::P(D)
- P(i);N_GUARD,XR(G)::QAB1(B)
- P(i);N_GUARD::QAB1(B)
- P(j);N_GUARD::R1(G)
- Tries
- Try
- K(I);P-FLIGHT,XP(j)
- Threat
- R1(G)
- Vars
- Q(e);CHECK,XP(D)::S(C),XQ(e)
- P(i);N_GUARD,XR(G)::QAB1(B)
- B(a);N_GUARD::QAB1(B),XB(a)
- Q(e);N_GUARD::S(C),XQ(e)
- S(f);N_GUARD::S(H),XS(f)
- P(i);N_GUARD::QAB1(B)
- Refutation
- Q(e);
- Try
- R(G);
- Threat
- QAB1(B)
- Vars
- S(f);CHECK,N_GUARD::S(H),XS(f)
- P(h);N_GUARD,XR(E)::P(D)
- Q(e);N_GUARD::S(C),XQ(e)
- R(c);N_GUARD::R1(E),XR(c)
- S(f);N_GUARD::S(H)
- P(h);N_GUARD::P(D)
- Refutation
- B(a);XR(G)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::S(H),XS(f)
- Q(e);XP(D)::S(C),XQ(e)
- P(i);OGATE,XR(G)::QAB1(B),XP(i)
- B(a);N_GUARD::QAB1(B),XB(a)
- S(b);S_CUTB(a)::QAB1(B)
- S(b);S_CUTR(c)::R1(E)
- Refutation
- P(i);
- Try
- R(G);
- Threat
- R1(G)
- Vars
- S(f);CHECK,N_GUARD::S(H),XS(f)
- Q(e);XP(D)::S(C),XQ(e)
- Q(e);N_GUARD::S(C),XQ(e)
- S(b);S_CUTR(c)::R1(E)
- Refutation
- Q(e);
- Try
- Q(B);CHECK,XP(h)
- Vars
- P(j);P_SPINP(j)::QAR1(B),XP(j)
- Refutation
- Q(e);CHECK,XQ(B)
- Try
- P(A);
- Threat
- QAB1(B)
- Vars
- S(f);CHECK,N_GUARD::S(H),XS(f)
- Q(e);N_GUARD::S(C),XQ(e)
- R(c);N_GUARD::R1(E),XR(c)
- S(f);N_GUARD::S(H)
- Refutation
- B(a);XP(A)
- Try
- Actual
- P(A);
- Threat
- QAR1(B)
- Vars
- S(f);CHECK,N_GUARD::S(H),XS(f)
- Q(e);XP(D)::S(C),XQ(e)
- S(f);N_GUARD,XP(A)::S(H)
- P(h);N_GUARD,XR(E)::P(D)
- Q(e);N_GUARD::S(C),XQ(e)
- B(a);N_GUARD::QAB1(B),XB(a)
- S(b);S_CUTB(a)::QAB1(B)
- S(b);S_CUTR(c)::R1(E)
- P(h);N_GUARD::P(D)
- P(i);N_GUARD::QAB1(B)
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).