MESON Chess Problem Database
Problem Display
PID: 227081 (8/p1K5/N2pp2R/3k4/p1p2P2/1n2P3/B1QP3p/8 w - - 0 1)
Groza, Stefan
Schweizerische Schachzeitung, 1985
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Bxc4#
- 2.Qd3#
- 2.Qxc4#
- 1...Sc1
- 2.Bxc4#
- 2.Qxc4#
- 1...Sxd2
- 2.Qd3#
- 1...Sd4
- 2.Bxc4#
- 2.e4#
- 1...Sa5
- 2.Qd3#
- 1...Sc5
- 2.Sb4#
- 2.Bxc4#
- 2.Qxc4#
- 1...c3
- 2.Qd3#
- 1...e5
- 2.Rxd6#
- 1...Sa1
- Tries
- 1.Bxb3?
- threat
- 2.Bxc4#
- 2.Qd3#
- 2.Qxc4#
- 1...cxb3
- 2.Sb4#
- 2.Qd3#
- 2.Qc6#
- 1...axb3!
- threat
- 1.Rxe6?
- threat
- 2.Rxd6#
- 2.Qe4#
- 2.Qf5#
- 1...Sxd2
- 2.Rxd6#
- 2.Qf5#
- 1...c3
- 2.Qe4#
- 1...h1Q
- 2.Rxd6#
- 2.Qf5#
- 1...h1B
- 2.Rxd6#
- 2.Qf5#
- 1...Sd4
- 2.Bxc4#
- 2.Rxd6#
- 2.Qe4#
- 2.Qxc4#
- 1...Sc5
- 2.Bxc4#
- 2.Rxd6#
- 2.Qf5#
- 2.Qxc4#
- 1...Kxe6!
- threat
- 1.Qd3+?
- 1...Sd4
- 2.Bxc4#
- 2.Qxd4#
- 2.e4#
- 1...cxd3!
- 1...Sd4
- 1.Qf5+?
- 1...e5
- 2.Rxd6#
- 1...exf5!
- 1...e5
- 1.Qg6?
- threat
- 2.Qg2#
- 2.Qxe6#
- 1...Sxd2
- 2.Qd3#
- 2.Qxe6#
- 1...c3
- 2.Qd3#
- 2.Qxe6#
- 1...h1Q
- 2.Qxe6#
- 1...h1B
- 2.Qxe6#
- 1...Sd4
- 2.e4#
- 1...Sc5
- 2.Sb4#
- 1...e5!
- threat
- 1.d3?
- threat
- 2.Qg2#
- 2.Qxc4#
- 2.dxc4#
- 1...cxd3
- 2.Qxd3#
- 2.Qc6#
- 1...h1Q
- 2.Qxc4#
- 2.dxc4#
- 1...h1B
- 2.Qxc4#
- 2.dxc4#
- 1...Sd4
- 2.Bxc4#
- 2.Qxc4#
- 2.dxc4#
- 2.e4#
- 1...Sa5
- 2.Qg2#
- 1...Sc5
- 2.Sb4#
- 2.Bxc4#
- 2.Qxc4#
- 2.dxc4#
- 1...c3
- 2.Qg2#
- 1...e5
- 2.Rxd6#
- 2.Qxc4#
- 2.dxc4#
- 1...Sd2!
- threat
- 1.d4?
- threat
- 2.Sb4#
- 2.Qg2#
- 1...Sxd4
- 2.Bxc4#
- 2.e4#
- 1...cxd4 ep
- 2.Qxd3#
- 2.Qc6#
- 1...h1Q
- 2.Sb4#
- 1...h1B
- 2.Sb4#
- 1...Sd2
- 2.Sb4#
- 1...Sc5
- 2.Sb4#
- 2.Bxc4#
- 1...e5
- 2.Sb4#
- 2.Rxd6#
- 1...c3!
- threat
- 1.Bxb3?
- Keys
- 1.Qb1!
- threat
- 2.Qh1#
- 1...Sxd2
- 2.Qd3#
- 2.Qb7#
- 1...c3
- 2.Qd3#
- 1...h1Q
- 2.Qxh1#
- 1...h1S
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Sc1
- 2.Qb7#
- 1...Sd4
- 2.e4#
- 1...Sc5
- 2.Sb4#
- 1...e5
- 2.Rxd6#
- threat
- 1.Qb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 2
- Sets
- S(b);N_GUARD,P_SPINP(d),XP(C)::QAR2(B)
- S(b);N_GUARD,P_SPINP(d)::QAR2(B)
- P(d);N_GUARD,P_SPINS(b)::QAR2(B)
- P(g);OGATE::R1(G),XP(f)
- Tries
- Try
- B(A);P_PINP(d),XS(b)
- Threat
- DUALS(3)
- Refutation
- P(c);N_SPINP(d),XB(A)
- Try
- R(G);XP(g)
- Threat
- DUALS(3)
- Vars
- P(d);P_SPINS(b)::QAB1(B)
- Refutation
- K(e);S_FLIGHT,XR(G)
- Try
- Q(B);CHECK
- Refutation
- P(d);P_SPINS(b),XQ(B)
- Try
- Q(B);CHECK
- Vars
- P(g);OGATE,P_SPINP(g)::R1(G),XP(f)
- Refutation
- P(g);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(a);::QAB1(B),XP(g)
- S(b);P_SPINP(d),SBLOCK::P(D)
- S(b);P_SPINP(d),SBLOCK::S(F)
- Refutation
- P(g);
- Try
- P(C);
- Threat
- DUALS(3)
- Vars
- S(b);P_SPINP(d)::QAB(B)
- P(d);P_SPINS(b)::QAB(B)
- Refutation
- S(b);P_SPINP(d)
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- P(a);::S(F)
- S(b);P_SPINP(d)::S(F)
- Refutation
- P(d);P_SPINS(b)
- Try
- Actual
- Q(B);
- Threat
- QAB(B)
- Vars
- P(d);N_GUARD,P_SPINS(b)::QAR2(B)
- P(a);::QAB(B),XQ(a)
- P(a);::QAB(B),XS(a)
- P(a);::QAB(B),XB(a)
- P(a);::QAB(B),XR(a)
- S(b);OGATE,P_SPINP(d)::QAB(B)
- S(b);P_SPINP(d),SBLOCK::P(D)
- S(b);P_SPINP(d),SBLOCK::S(F)
- P(g);OGATE::R1(G),XP(f)
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).