MESON Chess Problem Database
Problem Display
PID: 219162 (1B2K3/3pN2B/1R1pkp2/4n2N/2bn1p2/q5r1/5r2/4R2Q w - - 0 1)
Bender, Norbert
Freie Presse, 1980
#2
8 + 11
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Rxd6#
- 1...Qb2
- 2.Rxd6#
- 1...Qa1
- 2.Rxd6#
- 1...Qa2
- 2.Rxd6#
- 1...Qb3
- 2.Rxd6#
- 1...Qc3
- 2.Rxd6#
- 1...Qd3
- 2.Rxd6#
- 1...Qe3
- 2.Rxd6#
- 1...Qf3
- 2.Rxd6#
- 1...Qa4
- 2.Rxd6#
- 1...Qa5
- 2.Rxd6#
- 1...Qa7
- 2.Rxd6#
- 1...Qa8
- 2.Rxd6#
- 1...Ra2
- 2.Sxf4#
- 1...Rb2
- 2.Sxf4#
- 1...Rc2
- 2.Sxf4#
- 1...Rd2
- 2.Sxf4#
- 1...Re2
- 2.Sxf4#
- 1...Rfg2
- 2.Sxf4#
- 1...Rh2
- 2.Sxf4#
- 1...Rb3
- 2.Sg7#
- 2.Bg8#
- 1...Rc3
- 2.Sg7#
- 2.Bg8#
- 1...Rd3
- 2.Sg7#
- 2.Bg8#
- 1...Re3
- 2.Sg7#
- 1...Rf3
- 2.Sg7#
- 2.Bg8#
- 1...Rh3
- 2.Sg7#
- 2.Bg8#
- 1...Rg7
- 2.Sxg7#
- 1...Rg8+
- 2.Bxg8#
- 1...Bf1
- 2.Qd5#
- 1...Be2
- 2.Qd5#
- 1...Bd3
- 2.Qd5#
- 1...Bb5
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...Ba6
- 2.Qd5#
- 1...Sc2
- 2.Bf5#
- 1...Se2
- 2.Bf5#
- 1...Sb3
- 2.Bf5#
- 1...Sf3
- 2.Sxf4#
- 2.Bf5#
- 1...Sb5
- 2.Bf5#
- 1...Sf5
- 2.Bxf5#
- 1...Sc6
- 2.Bf5#
- 1...f3
- 2.Sf4#
- 1...Qc1
- Tries
- 1.Sxg3?
- threat
- 2.Bg8#
- 1...Qxg3
- 2.Rxd6#
- 1...f5
- 2.Qh6#
- 1...Qe3
- 2.Rxd6#
- 1...Be2
- 2.Qd5#
- 1...Se2
- 2.Bf5#
- 1...Re2!
- threat
- 1.Bg6?
- threat
- 2.Sg7#
- 2.Bf7#
- 1...Qe3
- 2.Sg7#
- 2.Rxd6#
- 1...Re2
- 2.Sxf4#
- 2.Sg7#
- 1...Re3
- 2.Sg7#
- 1...Be2
- 2.Sg7#
- 2.Qd5#
- 1...Se2
- 2.Sg7#
- 2.Bf5#
- 1...Sf5
- 2.Bxf5#
- 2.Bf7#
- 1...f5
- 2.Bf7#
- 1...Rxg6!
- threat
- 1.Rxe5+?
- 1...Kxe5
- 2.Qe4#
- 1...fxe5!
- 1...Kxe5
- 1.Qc6?
- threat
- 2.Qxd7#
- 2.Qxc4#
- 1...Rg8+
- 2.Bxg8#
- 1...Sxc6
- 2.Bf5#
- 1...Qb4
- 2.Qxd7#
- 1...Qc1
- 2.Qxd7#
- 2.Qxd6#
- 1...Qc5
- 2.Qxd7#
- 1...Qa2
- 2.Qxd7#
- 2.Qxd6#
- 1...Qb3
- 2.Qxd7#
- 2.Qxd6#
- 1...Qc3
- 2.Qxd7#
- 2.Qxd6#
- 1...Qd3
- 2.Qxd7#
- 2.Qxd6#
- 1...Qe3
- 2.Qxd6#
- 1...Qf3
- 2.Qxd7#
- 2.Qxd6#
- 1...Qa4
- 2.Qxd6#
- 1...Qa5
- 2.Qxd7#
- 2.Qxd6#
- 1...Qa6
- 2.Qxd7#
- 2.Qxd6#
- 1...Qa7
- 2.Qxc4#
- 2.Qxd6#
- 1...Qa8
- 2.Qxd7#
- 2.Qxd6#
- 1...Rc2
- 2.Sxf4#
- 2.Qxd7#
- 1...Re2
- 2.Sxf4#
- 1...Rc3
- 2.Sg7#
- 2.Bg8#
- 2.Qxd7#
- 1...Re3
- 2.Sg7#
- 1...Bf1
- 2.Qd5#
- 2.Qxd7#
- 1...Ba2
- 2.Qxd7#
- 1...Be2
- 2.Qd5#
- 1...Bb3
- 2.Qxd7#
- 1...Bd3
- 2.Qd5#
- 2.Qxd7#
- 1...Bb5
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 2.Qxd7#
- 1...Ba6
- 2.Qd5#
- 2.Qxd7#
- 1...Se2
- 2.Bf5#
- 1...dxc6!
- threat
- 1.Qh3+?
- 1...Rxh3
- 2.Sg7#
- 2.Bg8#
- 1...Rg4
- 2.Sg7#
- 2.Bg8#
- 1...Sf5
- 2.Bxf5#
- 2.Qxf5#
- 1...f5!
- 1...Rxh3
- 1.Sxg3?
- Keys
- 1.Qb7!
- threat
- 2.Qxd7#
- 1...Rg8+
- 2.Bxg8#
- 1...Qe3
- 2.Rxd6#
- 1...Qa4
- 2.Rxd6#
- 1...Qa7
- 2.Rxd6#
- 1...Re2
- 2.Sxf4#
- 1...Re3
- 2.Sg7#
- 1...Be2
- 2.Qd5#
- 1...Bb5
- 2.Qd5#
- 1...Se2
- 2.Bf5#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 27
- Sets
- Q(b);N_GUARD::R1(D),XP(h)
- Q(b);N_GUARD,N_SPINS(g)::R1(D),XP(h)
- Q(b);N_GUARD,P_PINB(G)::R1(D),XP(h)
- R(a);N_GUARD::S(C),XP(f)
- R(a);N_GUARD,N_SPINS(g)::S(C),XP(f)
- R(c);N_GUARD,N_SPINS(g)::S(C)
- R(c);N_GUARD::S(C),XR(c)
- R(c);CHECK,N_GUARD::B(F),XR(c)
- B(d);N_GUARD::QAB1(B)
- B(d);N_GUARD,N_SPINS(g)::QAB1(B)
- B(d);N_GUARD::QAB1(B),XB(d)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD,N_SPINS(g)::B(F)
- S(e);N_GUARD::B(F),XS(e)
- S(e);N_GUARD,N_SPINP(h)::B(F)
- P(f);S_CUTR(a)::S(C)
- Tries
- Try
- S(C);XR(c)
- Threat
- B(F)
- Vars
- Q(b);N_GUARD,XS(C)::R1(D),XP(h)
- P(j);OGATEB::QAR(B)
- Q(b);N_GUARD,N_SPINS(g)::R1(D),XP(h)
- B(d);N_GUARD,N_SPINS(g)::QAB1(B)
- S(e);N_GUARD,N_SPINS(g)::B(F)
- Refutation
- R(a);N_SPINS(g)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(c);N_SPINS(g)::S(C)
- P(j);::B(F)
- Refutation
- R(c);XB(F)
- Try
- R(A);CHECK,XS(g)
- Vars
- K(i);P-FLIGHT,XR(A)::QAR1(B)
- Refutation
- P(j);XR(A)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,N_GUARD::B(F),XR(c)
- S(e);N_GUARD,N_SPINP(h),XQ(B)::B(F)
- Q(b);::QAB1(B),XP(k)
- Q(b);N_GUARD,N_SPINS(g)::QAR1(B),XP(h)
- Q(b);N_GUARD::QAR1(B),XP(h)
- R(a);N_GUARD,N_SPINS(g)::S(C),XP(f)
- R(c);N_GUARD,N_SPINS(g)::S(C)
- B(d);::QAB1(B),XP(k)
- B(d);N_GUARD,N_SPINS(g)::QAB1(B)
- B(d);N_GUARD::QAB1(B)
- S(e);N_GUARD,N_SPINS(g)::B(F)
- Refutation
- P(k);N_SPINP(h),XQ(B)
- Try
- Q(B);CHECK
- Refutation
- P(j);N_SPINP(h),P_SPINP(j)
- Try
- Actual
- Q(B);
- Threat
- QAB1(B),XP(k)
- Vars
- R(c);CHECK,N_GUARD::B(F),XR(c)
- Q(b);N_GUARD,N_SPINS(g)::R1(D),XP(h)
- Q(b);N_GUARD::R1(D),XP(h)
- R(a);N_GUARD,N_SPINS(g)::S(C),XP(f)
- R(c);N_GUARD,N_SPINS(g)::S(C)
- B(d);N_GUARD,N_SPINS(g)::QAB1(B)
- B(d);N_GUARD::QAB1(B)
- S(e);N_GUARD,N_SPINS(g)::B(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).