MESON Chess Problem Database
Problem Display
PID: 249634 (8/7p/3N3p/2QB2pK/3Ppk1N/2r1rP2/2bP1P2/5q2 w - - 0 1)
Hernitz, Zvonimir
Stella Polaris, 1969
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.dxe3#
- 1...Rxc5
- 2.dxe3#
- 1...Bd3
- 2.dxe3#
- 1...Rc4
- Tries
- 1.Sc4?
- threat
- 2.Qd6#
- 2.Qf8#
- 2.Qc7#
- 1...Qxc4
- 2.Qd6#
- 2.Qf8#
- 1...Qxf2
- 2.Qd6#
- 2.Qc7#
- 1...Rxc4
- 2.Qd6#
- 2.Qf8#
- 2.dxe3#
- 1...gxh4
- 2.Qf8#
- 1...Qh3
- 2.Qd6#
- 2.Qc7#
- 1...exf3!
- threat
- 1.Sxe4?
- threat
- 2.Qd6#
- 2.Qf8#
- 1...Rxc5
- 2.dxe3#
- 2.fxe3#
- 1...Rxe4
- 2.Qf8#
- 1...Bxe4
- 2.Qd6#
- 1...gxh4
- 2.Qf8#
- 1...Qh3
- 2.Qd6#
- 1...Qa6!
- threat
- 1.Sb5?
- threat
- 2.Qd6#
- 2.Qf8#
- 1...Qxf2
- 2.Qd6#
- 1...Rxc5
- 2.dxe3#
- 1...gxh4
- 2.Qf8#
- 1...Qh3
- 2.Qd6#
- 1...exf3!
- threat
- 1.Bc4?
- threat
- 2.Qe5#
- 2.Qf5#
- 1...Qxf2
- 2.Qe5#
- 1...gxh4
- 2.Qf5#
- 1...Qh3
- 2.Qe5#
- 1...exf3!
- threat
- 1.Qc7?
- threat
- 2.Sc4#
- 2.Qf7#
- 1...Qxf2
- 2.Sc4#
- 1...Rxc7
- 2.dxe3#
- 1...gxh4
- 2.Qf7#
- 1...Qh3
- 2.Sc4#
- 1...Qc4
- 2.Sxc4#
- 2.Qf7#
- 1...Qa6
- 2.Qf7#
- 1...Rc4
- 2.Sxc4#
- 2.Qf7#
- 2.dxe3#
- 1...Rc5
- 2.Qf7#
- 2.dxe3#
- 1...Rc6
- 2.Qf7#
- 2.dxe3#
- 1...exf3!
- threat
- 1.Qc8?
- threat
- 2.Qg4#
- 2.Qf5#
- 2.Qf8#
- 1...Qxf2
- 2.Qg4#
- 1...Rxc8
- 2.dxe3#
- 1...exf3
- 2.Qg4#
- 1...Qg2
- 2.Qf5#
- 2.Qf8#
- 1...Qg1
- 2.Qf5#
- 2.Qf8#
- 1...Rc7
- 2.Qg4#
- 2.Qf5#
- 2.dxe3#
- 1...g4
- 2.Qxg4#
- 2.Qf5#
- 2.Qf8#
- 1...Qh3!
- threat
- 1.Sc4?
- Keys
- 1.Bxe4!
- threat
- 2.Qe5#
- 2.Qf5#
- 1...Qxf2
- 2.Qe5#
- 1...Rxc5
- 2.dxe3#
- 1...Rxe4
- 2.Qf5#
- 1...Bxe4
- 2.Qe5#
- 1...Qh3
- 2.Qe5#
- 1...Qb5
- 2.Sg2#
- threat
- 1.Bxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- R(c);N_GUARD::P(A),XR(d)
- R(c);N_GUARD,XQ(F)::P(A),XR(d)
- B(b);S_CUTR(c)::P(A),XR(d)
- Tries
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- P(g);XS(E)::QAR(F)
- Refutation
- P(e);XP(C)
- Try
- S(I);XP(e)
- Threat
- DUALS(2)
- Vars
- R(d);XS(I)::QAR(F)
- B(b);XS(I)::QAB(F)
- P(g);XS(E)::QAR(F)
- Q(a);P_PINS(E)::QAB(F)
- Refutation
- Q(a);
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(B)::QAB(F)
- R(c);N_GUARD,XQ(F)::P(A),XR(d)
- P(g);XS(E)::QAR(F)
- Q(a);P_PINS(E)::QAB(F)
- Refutation
- P(e);XP(C)
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(B)::QAB1(F)
- P(g);XS(E)::QAR1(F)
- Q(a);P_PINS(E)::QAB1(F)
- Refutation
- P(e);XP(C)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(B)::QAB(F)+S(I)
- R(c);N_GUARD,XQ(F)::P(A),XR(d)
- P(g);XS(E)::QAR(F)
- Q(a);P_PINS(E)::QAB(F)+S(I)
- Q(a);::QAR(F)
- Refutation
- P(e);XP(C)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- Q(a);XP(B)::QAR1(F)
- R(c);N_GUARD,XQ(F)::P(A),XR(d)
- P(e);XP(C)::QAR1(F)
- Refutation
- Q(a);P_PINS(E)
- Try
- Actual
- B(G);XP(e)
- Threat
- DUALS(2)
- Vars
- Q(a);XP(B)::QAB1(F)
- R(c);N_GUARD,XQ(F)::P(A),XR(d)
- R(d);XB(G)::QAR1(F)
- B(b);XB(G)::QAB1(F)
- Q(a);P_PINS(E)::QAB1(F)
- Q(a);N_GUARD::S(E)
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).