MESON Chess Problem Database
Problem Display
PID: 82498 (8/8/8/4p3/1N2K3/n7/1RB1Q3/k1n5 w - - 0 1)
Havel, Miroslav
UJCS, 1948
#2
5 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Rxa2#
- 1...Sxe2
- 2.Ra2#
- 1...Sb3
- 2.Ra2#
- 1...Sd3
- 2.Ra2#
- 1...Sb1
- 2.Rxb1#
- 1...Sc4
- 2.Rb1#
- 1...Sb5
- 2.Rb1#
- 1...Sa2
- Tries
- 1.Qd1?
- threat
- 2.Ra2#
- 1...Sxc2
- 2.Qxc1#
- 1...Sb1
- 2.Rxb1#
- 1...Kxb2!
- threat
- 1.Qf1?
- threat
- 2.Ra2#
- 1...Sxc2
- 2.Qxc1#
- 1...Sb1
- 2.Rxb1#
- 1...Kxb2!
- threat
- 1.Qh5?
- 1...Kxb2
- 2.Qxe5#
- 1...Sa2
- 2.Rxa2#
- 1...Se2
- 2.Ra2#
- 1...Sb3
- 2.Ra2#
- 1...Sd3
- 2.Ra2#
- 1...Sb1
- 2.Rxb1#
- 1...Sc4
- 2.Rb1#
- 1...Sb5
- 2.Rb1#
- 1...Sxc2!
- 1...Kxb2
- 1.Qa6?
- threat
- 2.Rb1#
- 1...Sa2
- 2.Rxa2#
- 1...Kxb2!
- threat
- 1.Qe1?
- threat
- 2.Ra2#
- 1...Sxc2
- 2.Qxc1#
- 1...Sb1
- 2.Rxb1#
- 1...Kxb2!
- threat
- 1.Qd2?
- 1...Sxc2
- 2.Qxc1#
- 1...Sa2
- 2.Rxa2#
- 1...Se2
- 2.Ra2#
- 1...Sb3
- 2.Ra2#
- 1...Sd3
- 2.Ra2#
- 1...Sb1
- 2.Rxb1#
- 1...Sc4
- 2.Rb1#
- 2.Qxc1#
- 1...Sb5
- 2.Rb1#
- 2.Qxc1#
- 1...Kxb2!
- 1...Sxc2
- 1.Qh2?
- 1...Kxb2
- 2.Qxe5#
- 1...Sa2
- 2.Rxa2#
- 1...Se2
- 2.Ra2#
- 1...Sb3
- 2.Ra2#
- 1...Sd3
- 2.Ra2#
- 1...Sb1
- 2.Rxb1#
- 1...Sc4
- 2.Rb1#
- 1...Sb5
- 2.Rb1#
- 1...Sxc2!
- 1...Kxb2
- 1.Qe3?
- 1...Sxc2
- 2.Qxc1#
- 1...Sa2
- 2.Rxa2#
- 1...Se2
- 2.Ra2#
- 2.Qxa3#
- 1...Sb3
- 2.Ra2#
- 1...Sd3
- 2.Ra2#
- 1...Sb1
- 2.Rxb1#
- 1...Sc4
- 2.Rb1#
- 2.Qxc1#
- 1...Sb5
- 2.Rb1#
- 2.Qxc1#
- 1...Kxb2!
- 1...Sxc2
- 1.Qd1?
- Keys
- 1.Qb5!
- 1...Kxb2
- 2.Qxe5#
- 1...Sxc2
- 2.Sxc2#
- 1...Sxb5
- 2.Rb1#
- 1...Sa2
- 2.Rxa2#
- 1...Se2
- 2.Ra2#
- 1...Sb3
- 2.Ra2#
- 1...Sd3
- 2.Ra2#
- 1...Sb1
- 2.Rxb1#
- 1...Sc4
- 2.Rb1#
- 1...Kxb2
- 1.Qb5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::R1(A),XS(b)
- S(b);N_GUARD,XQ(C)::R1(A)
- S(b);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- S(c);N_GUARD::R1(A)
- Tries
- Try
- Q(C);P_PINS(b)
- Threat
- R1(A)
- Vars
- S(c);N_GUARD,XB(B)::QAR2(C),XS(b)
- S(c);N_GUARD,N_SPINS(b)::R1(A),XS(c)
- Refutation
- K(a);N_SPINS(b),S_FLIGHT,XR(A)
- Try
- Q(C);P_PINS(b)
- Threat
- R1(A)
- Vars
- S(c);N_GUARD,XB(B)::QAR2(C),XS(b)
- S(c);N_GUARD,N_SPINS(b)::R1(A),XS(c)
- Refutation
- K(a);N_SPINS(b),S_FLIGHT,XR(A)
- Try
- Q(C);
- Vars
- K(a);OGATEB,S_FLIGHT,XR(A)::QAB(C),XP(d)
- S(b);N_GUARD::R1(A),XS(b)
- S(b);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- S(c);N_GUARD::R1(A)
- Refutation
- S(c);XB(B)
- Try
- Q(C);P_PINS(c)
- Threat
- R1(A)
- Vars
- S(b);N_GUARD,N_SPINS(c)::R1(A),XS(b)
- Refutation
- K(a);N_SPINS(c),S_FLIGHT,XR(A)
- Try
- Q(C);P_PINS(b)
- Threat
- R1(A)
- Vars
- S(c);N_GUARD,XB(B)::QAR2(C),XS(b)
- S(c);N_GUARD,N_SPINS(b)::R1(A),XS(c)
- Refutation
- K(a);N_SPINS(b),S_FLIGHT,XR(A)
- Try
- Q(C);
- Vars
- S(c);N_GUARD,XB(B)::QAR2(C),XS(b)
- S(b);N_GUARD::R1(A),XS(b)
- S(b);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- Refutation
- K(a);S_FLIGHT,XR(A)
- Try
- Q(C);
- Vars
- K(a);OGATEB,S_FLIGHT,XR(A)::QAB(C),XP(d)
- S(b);N_GUARD::R1(A),XS(b)
- S(b);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- S(c);N_GUARD::R1(A)
- Refutation
- S(c);XB(B)
- Try
- Q(C);
- Vars
- S(c);N_GUARD,XB(B)::QAR2(C),XS(b)
- S(b);N_GUARD::R1(A),XS(b)
- S(b);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- Refutation
- K(a);S_FLIGHT,XR(A)
- Try
- Actual
- Q(C);
- Vars
- K(a);OGATEB,S_FLIGHT,XR(A)::QAB(C),XP(d)
- S(c);XB(B)::S(D),XS(c)
- S(c);N_GUARD,XQ(C)::R1(A)
- S(b);N_GUARD::R1(A),XS(b)
- S(b);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- S(c);N_GUARD::R1(A)
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).