MESON Chess Problem Database
Problem Display
PID: 212830 (8/1p1p4/pR1P4/RnP3B1/3k2P1/1P1n4/3Q3p/K6B w - - 0 1)
Speckmann, Werner
Schach-Echo, 1961
#2
10 + 7
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kxc5
- 2.Be3#
- 1...Ke5
- 2.Qe3#
- 1...Sa3
- 2.Bf6#
- 1...Sc3
- 2.Bf6#
- 2.Qe3#
- 1...Sxd6
- 2.Bf6#
- 1...Sa7
- 2.Bf6#
- 1...Sc7
- 2.Bf6#
- 1...Kxc5
- Tries
- 1.Ka2?
- 1...Kxc5
- 2.Be3#
- 1...Ke5
- 2.Qe3#
- 1...Sxd6
- 2.Bf6#
- 1...Sa3
- 2.Bf6#
- 1...Sa7
- 2.Bf6#
- 1...Sc7
- 2.Bf6#
- 1...Sc3+!
- 1...Kxc5
- 1.Bf4?
- 1...Kxc5
- 2.Be3#
- 1...Sxd6
- 2.Rxd6#
- 1...Sc3
- 2.Rb4#
- 2.Qe3#
- 1...Sa7
- 2.Rb4#
- 1...Sc7
- 2.Rb4#
- 1...Sa3!
- 1...Kxc5
- 1.Bh4?
- 1...Ke5
- 2.Qe3#
- 1...Sxd6
- 2.Bf6#
- 1...Sa3
- 2.Bf6#
- 1...Sc3
- 2.Bf6#
- 1...Sa7
- 2.Bf6#
- 1...Sc7
- 2.Bf6#
- 1...Kxc5!
- 1...Ke5
- 1.Bh6?
- 1...Kxc5
- 2.Be3#
- 1...Sxd6
- 2.Bg7#
- 1...Sa3
- 2.Bg7#
- 1...Sc3
- 2.Bg7#
- 2.Qe3#
- 1...Sa7
- 2.Bg7#
- 1...Sc7
- 2.Bg7#
- 1...Ke5!
- 1...Kxc5
- 1.Be7?
- 1...Ke5
- 2.Qe3#
- 1...Sxd6
- 2.Bf6#
- 1...Sa3
- 2.Bf6#
- 1...Sc3
- 2.Bf6#
- 1...Sa7
- 2.Bf6#
- 1...Sc7
- 2.Bf6#
- 1...Kxc5!
- 1...Ke5
- 1.Ra4+?
- 1...Ke5
- 2.Qe3#
- 2.Qe2#
- 1...Kxc5!
- 1...Ke5
- 1.Raxb5?
- threat
- 2.Bf6#
- 1...Ke5
- 2.Qe3#
- 1...axb5!
- threat
- 1.Rbxb5?
- threat
- 2.Bf6#
- 1...Ke5
- 2.Qe3#
- 1...axb5!
- threat
- 1.Rxb7?
- 1...Ke5
- 2.Qe3#
- 1...Sxd6
- 2.Bf6#
- 1...Sa3
- 2.Bf6#
- 1...Sc3
- 2.Bf6#
- 2.Qe3#
- 1...Sa7
- 2.Bf6#
- 1...Sc7
- 2.Bf6#
- 1...Kxc5!
- 1...Ke5
- 1.Qb4+?
- 1...Ke5
- 2.Qe4#
- 1...Sxb4!
- 1...Ke5
- 1.Ka2?
- Keys
- 1.Bd8!
- 1...Kxc5
- 2.Qc3#
- 1...Ke5
- 2.Qe3#
- 1...Sxd6
- 2.Bf6#
- 1...Sa3
- 2.Bf6#
- 1...Sc3
- 2.Bf6#
- 1...Sa7
- 2.Bf6#
- 1...Sc7
- 2.Bf6#
- 1...Kxc5
- 1.Bd8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(c);N_SPINS(b),P_SPINS(d),S_FLIGHT,XP(G)::B(H)
- K(c);N_SPINS(b),S_FLIGHT::QAR2(C)
- S(d);::B(H)
- S(d);XP(J)::B(H)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(c);N_SPINS(b),P_SPINS(d),S_FLIGHT,XP(G)::B(H)
- K(c);N_SPINS(b),S_FLIGHT::QAR2(C)
- S(d);XP(J)::B(H)
- S(d);::B(H)
- Refutation
- S(d);CHECK
- Try
- B(H);
- Vars
- K(c);N_SPINS(b),P_SPINS(d),S_FLIGHT,XP(G)::B(H)
- S(d);OGATE,XP(J)::R(I),XS(d)
- S(d);OGATE::R(I)
- Refutation
- S(d);
- Try
- B(H);
- Vars
- K(c);N_SPINS(b),S_FLIGHT::QAR2(C)
- S(d);XP(J)::B(H)
- S(d);::B(H)
- Refutation
- K(c);N_SPINS(b),P_SPINS(d),S_FLIGHT,XP(G)
- Try
- B(H);
- Vars
- K(c);N_SPINS(b),P_SPINS(d),S_FLIGHT,XP(G)::B(H)
- S(d);XP(J)::B(H)
- S(d);::B(H)
- Refutation
- K(c);N_SPINS(b),S_FLIGHT
- Try
- B(H);
- Vars
- K(c);N_SPINS(b),S_FLIGHT::QAR2(C)
- S(d);XP(J)::B(H)
- S(d);::B(H)
- Refutation
- K(c);N_SPINS(b),P_SPINS(d),S_FLIGHT,XP(G)
- Try
- R(F);CHECK
- Refutation
- K(c);N_SPINS(b),S_FLIGHT,XP(G)
- Try
- R(F);XS(d)
- Threat
- B(H)
- Vars
- K(c);N_SPINS(b),S_FLIGHT::QAR2(C)
- Refutation
- P(e);XR(F)
- Try
- R(I);XS(d)
- Threat
- B(H)
- Vars
- K(c);N_SPINS(b),S_FLIGHT::QAR2(C)
- Refutation
- P(e);XR(I)
- Try
- R(I);XP(f)
- Vars
- K(c);N_SPINS(b),S_FLIGHT::QAR2(C)
- S(d);XP(J)::B(H)
- S(d);::B(H)
- Refutation
- K(c);N_SPINS(b),P_SPINS(d),S_FLIGHT,XP(G)
- Try
- Q(C);CHECK,N_PINS(b)
- Vars
- K(c);OGATE,S_FLIGHT::QAR1(C)
- Refutation
- S(b);XQ(C)
- Try
- Actual
- B(H);
- Vars
- K(c);N_SPINS(b),P_SPINS(d),S_FLIGHT,XP(G)::QAR2(C)
- K(c);N_SPINS(b),S_FLIGHT::QAR2(C)
- S(d);XP(J)::B(H)
- S(d);::B(H)
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).