MESON Chess Problem Database
Problem Display
PID: 18162 (8/N2ppK2/3b4/1Qnk4/R2p1PN1/B3R3/3nP3/8 w - - 0 1)
Richenberg, LJ
Time & Tide, 1953
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxf4
- 2.Qxc5#
- 1...Be5
- 2.Qxc5#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sb1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sb3
- 2.Qc4#
- 1...Sf3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Se4
- 2.Qc4#
- 1...dxe3
- 2.Sxe3#
- 1...d3
- 2.Rxd3#
- 1...e5
- 2.Sf6#
- 1...e6
- 2.Sf6#
- 1...Bxf4
- Tries
- 1.Sc6?
- threat
- 2.Sb4#
- 2.Rxd4#
- 1...Bxf4
- 2.Rxd4#
- 2.Qxc5#
- 1...dxe3
- 2.Sxe3#
- 2.Rd4#
- 1...Be5
- 2.Qxc5#
- 1...Bc7
- 2.Rxd4#
- 2.Qxc5#
- 1...Bb8
- 2.Rxd4#
- 2.Qxc5#
- 1...e5
- 2.Sf6#
- 2.Sb4#
- 1...Sb3
- 2.Sb4#
- 1...Sf3
- 2.Sb4#
- 1...Sc4
- 2.Sb4#
- 1...d3
- 2.Rxd3#
- 2.Rd4#
- 1...dxc6!
- threat
- 1.Sc8?
- threat
- 2.Sb6#
- 1...Bxf4
- 2.Qxc5#
- 1...Be5
- 2.Rxe5#
- 2.Qxc5#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc4!
- threat
- 1.Bb2?
- threat
- 2.Rxd4#
- 1...dxe3
- 2.Sxe3#
- 2.Rd4#
- 1...e5
- 2.Sf6#
- 1...Sb3
- 2.Qc4#
- 1...Sf3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...d3
- 2.Rxd3#
- 2.Rd4#
- 1...Be5!
- threat
- 1.Bxc5?
- threat
- 2.Rxd4#
- 1...dxe3
- 2.Sxe3#
- 2.Rd4#
- 1...e5
- 2.Sf6#
- 1...Be5
- 2.Ba3#
- 2.Bb4#
- 2.Bxe7#
- 2.Rxe5#
- 1...Sb3
- 2.Qc4#
- 1...Sf3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...d3
- 2.Rxd3#
- 2.Rd4#
- 1...Bxc5!
- threat
- 1.Re6?
- 1...Bxf4
- 2.Qxc5#
- 1...dxe6
- 2.Qc6#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sb1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sb3
- 2.Qc4#
- 1...Sf3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Se4
- 2.Qc4#
- 1...d3
- 2.Se3#
- 1...Be5!
- 1...Bxf4
- 1.Qxd7?
- threat
- 2.Re5#
- 2.Qc6#
- 1...Sxa4
- 2.Qc6#
- 2.Qe6#
- 1...dxe3
- 2.Sxe3#
- 2.Qc6#
- 1...e5
- 2.Sf6#
- 2.Rxe5#
- 2.Qc6#
- 1...Sf3
- 2.Qc6#
- 1...Sc4
- 2.Qc6#
- 1...Sde4
- 2.Qc6#
- 1...Sd3
- 2.Qc6#
- 2.Qe6#
- 2.Qb7#
- 1...Sce4
- 2.Qc6#
- 2.Qe6#
- 2.Qb7#
- 1...Sxd7!
- threat
- 1.Qb4?
- threat
- 2.Qxd4#
- 1...dxe3
- 2.Sxe3#
- 2.Qd4#
- 1...Be5
- 2.Qxc5#
- 1...e5
- 2.Sf6#
- 1...Sdb3
- 2.Qc4#
- 1...Sf3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Scb3
- 2.Qb7#
- 1...Se6
- 2.Qb7#
- 1...d3
- 2.Qd4#
- 1...Sxa4!
- threat
- 1.f5?
- 1...Bh2
- 2.Qxc5#
- 1...Bg3
- 2.Qxc5#
- 1...Bf4
- 2.Qxc5#
- 1...Be5
- 2.Qxc5#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...e5
- 2.Sf6#
- 1...Sb1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sb3
- 2.Qc4#
- 1...Sf3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Se4
- 2.Qc4#
- 1...d3
- 2.Rxd3#
- 1...e6
- 2.Sf6#
- 1...dxe3!
- 1...Bh2
- 1.Sc6?
- Keys
- 1.Ra5!
- 1...Bxf4
- 2.Qxc5#
- 1...dxe3
- 2.Qd3#
- 1...Be5
- 2.Qxc5#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...d3
- 2.Qxd3#
- 1...e5
- 2.Sf6#
- 1...Sb1
- 2.Qb3#
- 1...Sf1
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sf3
- 2.Qb3#
- 1...Sc4
- 2.Qb7#
- 1...Se4
- 2.Qb3#
- 1...e6
- 2.Sf6#
- 1...Bxf4
- 1.Ra5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD,XP(E)::QAR1(G),XS(c)
- B(e);N_GUARD::QAR1(G),XS(c)
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- P(b);XR(C)::S(F),XP(b)
- P(b);OGATEB::R(C),XP(b)
- P(g);N_GUARD::S(F)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- B(e);N_GUARD::QAR1(G),XS(c)
- S(a);::S(H)
- Refutation
- P(f);XS(H)
- Try
- S(H);
- Threat
- S(H)
- Vars
- B(e);N_GUARD,XP(E)::QAR1(G),XS(c)
- B(e);N_GUARD::QAR1(G),XS(c)
- Refutation
- S(a);
- Try
- B(B);
- Threat
- R1(D),XP(b)
- Vars
- P(g);N_GUARD::S(F)
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- Refutation
- B(e);
- Try
- B(B);XS(c)
- Threat
- R1(D),XP(b)
- Vars
- P(g);N_GUARD::S(F)
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- Refutation
- B(e);P_SPINB(e),XB(B)
- Try
- R(C);
- Vars
- B(e);N_GUARD,XP(E)::QAR1(G),XS(c)
- P(f);N_GUARD,XR(C)::QAB1(G)
- B(e);N_GUARD::QAR1(G),XS(c)
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- P(b);N_GUARD::S(F)
- Refutation
- B(e);
- Try
- Q(G);N_PINS(c),P_PINB(e),XP(f)
- Threat
- DUALS(2)
- Vars
- S(a);::QAB1(G)
- Refutation
- S(c);N_SPINB(e),XQ(G)
- Try
- Q(G);N_PINS(c)
- Threat
- QAR1(G),XP(b)
- Vars
- B(e);N_GUARD::QAR1(G),XS(c)
- P(g);N_GUARD::S(F)
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- S(c);N_GUARD::QAB(G)
- P(b);::QAR1(G)
- Refutation
- S(c);XR(D)
- Try
- P(E);
- Vars
- B(e);N_GUARD::QAR1(G),XS(c)
- P(g);N_GUARD::S(F)
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- P(b);OGATEB::R(C),XP(b)
- Refutation
- P(b);XR(C)
- Try
- Actual
- R(D);
- Vars
- B(e);N_GUARD,XP(E)::QAR1(G),XS(c)
- P(b);OGATEB,XR(C)::QAR2(G)
- B(e);N_GUARD::QAR1(G),XS(c)
- P(b);OGATEB::QAR2(G),XP(b)
- P(g);N_GUARD::S(F)
- S(a);N_GUARD::QAB(G)
- S(a);N_GUARD::QAB(G),XS(a)
- S(a);SBLOCK::QAB(G)
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).