MESON Chess Problem Database
Problem Display
PID: 189527 (2b1B1n1/1p3Q2/1K1k2N1/5r2/1P3P2/2N3B1/5n2/8 w - - 0 1)
Bottger, FBH
Leidische Courant, 1911
#2
8 + 6
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Sb5#
- 2.Bxf4#
- 2.Qd5#
- 1...Rb5+
- 2.Sxb5#
- 1...Rc5
- 2.bxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.fxe5#
- 1...Rg5
- 2.fxg5#
- 1...Rh5
- 2.f5#
- 1...Rf6
- 2.Sb5#
- 2.Qd5#
- 2.f5#
- 1...Rxf7
- 2.f5#
- 1...Be6
- 2.Qc7#
- 1...Bd7
- 2.Qxd7#
- 1...Sd1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Sd3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sg4
- 2.Se4#
- 1...Sf6
- 2.Qe7#
- 1...Sh6
- 2.Qe7#
- 1...Se7
- 2.Qxe7#
- 1...Rxf4
- Tries
- 1.Se5?
- threat
- 2.Sb5#
- 2.Sc4#
- 1...Rxf4
- 2.Sc4#
- 1...Rxe5
- 2.fxe5#
- 1...Be6
- 2.Qc7#
- 1...Bd7
- 2.Sc4#
- 2.Qxd7#
- 1...Rxf7!
- threat
- 1.Bxf2?
- threat
- 2.Se4#
- 1...Rb5+
- 2.Sxb5#
- 1...Rxf4
- 2.Sb5#
- 2.Bc5#
- 2.Qd5#
- 1...Re5
- 2.fxe5#
- 1...Be6
- 2.Qc7#
- 1...Sf6
- 2.Qe7#
- 1...Rxf7!
- threat
- 1.Ba4?
- 1...Rb5+
- 2.Sxb5#
- 1...Rxf4
- 2.Sb5#
- 2.Bxf4#
- 2.Qd5#
- 1...Rxf7
- 2.f5#
- 1...Rc5
- 2.bxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.fxe5#
- 1...Rg5
- 2.fxg5#
- 1...Rh5
- 2.f5#
- 1...Rf6
- 2.Sb5#
- 2.Qd5#
- 2.f5#
- 1...Be6
- 2.Qc7#
- 1...Bd7
- 2.Qxd7#
- 1...Sd1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Sd3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sg4
- 2.Se4#
- 1...Sf6
- 2.Qe7#
- 1...Sh6
- 2.Qe7#
- 1...Se7
- 2.Qxe7#
- 1...Ra5!
- 1...Rb5+
- 1.Qxf5?
- threat
- 2.Sb5#
- 2.Qd5#
- 2.Qe5#
- 1...Be6
- 2.Sb5#
- 2.Qc5#
- 2.Qe5#
- 1...Bd7
- 2.Qxd7#
- 2.Qd5#
- 2.Qe5#
- 1...Sd3
- 2.Se4#
- 2.Sb5#
- 2.Qd5#
- 1...Sg4
- 2.Se4#
- 2.Sb5#
- 2.Qd5#
- 1...Sf6
- 2.Sb5#
- 2.Qe5#
- 1...Se7
- 2.Sb5#
- 2.Qe5#
- 1...Bxf5!
- threat
- 1.Qf8+?
- 1...Rxf8
- 2.f5#
- 1...Se7
- 2.Qxe7#
- 1...Ke6!
- 1...Rxf8
- 1.b5?
- 1...Rxb5+
- 2.Sxb5#
- 1...Rxf4
- 2.Bxf4#
- 2.Qd5#
- 1...Rxf7
- 2.f5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.fxe5#
- 1...Rg5
- 2.fxg5#
- 1...Rh5
- 2.f5#
- 1...Rf6
- 2.Qd5#
- 2.f5#
- 1...Be6
- 2.Qc7#
- 1...Bd7
- 2.Qxd7#
- 1...Sd1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Sd3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sg4
- 2.Se4#
- 1...Sf6
- 2.Qe7#
- 1...Sh6
- 2.Qe7#
- 1...Se7
- 2.Qxe7#
- 1...Rc5!
- 1...Rxb5+
- 1.Se5?
- Keys
- 1.Bb5!
- 1...Rxb5+
- 2.Sxb5#
- 1...Rxf4
- 2.Bxf4#
- 2.Qd5#
- 1...Rxf7
- 2.f5#
- 1...Rc5
- 2.bxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.fxe5#
- 1...Rg5
- 2.fxg5#
- 1...Rh5
- 2.f5#
- 1...Rf6
- 2.Qd5#
- 2.f5#
- 1...Be6
- 2.Qc7#
- 1...Bd7
- 2.Qxd7#
- 1...Sd1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Sd3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sg4
- 2.Se4#
- 1...Sf6
- 2.Qe7#
- 1...Sh6
- 2.Qe7#
- 1...Se7
- 2.Qxe7#
- 1...Rxb5+
- 1.Bb5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);CHECK,N_GUARD::S(A),XR(b)
- R(b);OGATE::P(C),XR(b)
- R(b);N_GUARD::QAR1(G),XR(b)
- R(b);OGATE::P(D),XR(b)
- R(b);OGATE::B(B)+P(D),XR(b)
- R(b);OGATE::B(B)+P(D)
- R(b);OGATE,XQ(G)::B(B)+P(D)
- B(e);SBLOCK::QAB1(G)
- B(e);N_GUARD::QAR1(G),XB(e)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(f);N_GUARD::QAB1(G)
- S(f);N_GUARD::QAB1(G),XS(f)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(b);XP(D)::S(F)
- R(b);OGATE,XS(F)::P(D),XR(b)
- B(e);SBLOCK::QAB1(G)
- Refutation
- R(b);XQ(G)
- Try
- B(B);XS(a)
- Threat
- S(A)
- Vars
- R(b);CHECK,N_GUARD::S(A),XR(b)
- R(b);OGATE::P(D),XR(b)
- B(e);SBLOCK::QAB1(G)
- S(f);N_GUARD::QAB1(G)
- Refutation
- R(b);XQ(G)
- Try
- B(H);
- Vars
- R(b);CHECK,N_GUARD::S(A),XR(b)
- R(b);OGATE,XQ(G)::B(B)+P(D)
- R(b);OGATE::P(C),XR(b)
- R(b);N_GUARD::QAR1(G),XR(b)
- R(b);OGATE::P(D),XR(b)
- R(b);OGATE::B(B)+P(D),XR(b)
- R(b);OGATE::B(B)+P(D)
- B(e);SBLOCK::QAB1(G)
- B(e);N_GUARD::QAR1(G),XB(e)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(f);N_GUARD::QAB1(G)
- S(f);N_GUARD::QAB1(G),XS(f)
- Refutation
- R(b);
- Try
- Q(G);XR(b)
- Threat
- DUALS(3)
- Refutation
- B(e);XQ(G)
- Try
- Q(G);CHECK
- Vars
- R(b);OGATE,XQ(G)::B(B)+P(D)
- S(f);N_GUARD,P_SPINS(f)::QAB1(G),XS(f)
- Refutation
- K(c);P-FLIGHT
- Try
- P(C);
- Vars
- R(b);CHECK,XP(C)::S(A),XR(b)
- R(b);OGATE,XQ(G)::B(B)+P(D)
- R(b);N_GUARD::QAR1(G),XR(b)
- R(b);OGATE::P(D),XR(b)
- R(b);OGATE::B(B)+P(D),XR(b)
- R(b);OGATE::B(B)+P(D)
- B(e);SBLOCK::QAB1(G)
- B(e);N_GUARD::QAR1(G),XB(e)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(f);N_GUARD::QAB1(G)
- S(f);N_GUARD::QAB1(G),XS(f)
- Refutation
- R(b);
- Try
- Actual
- B(H);
- Vars
- R(b);CHECK,XB(H)::S(A),XR(b)
- R(b);OGATE,XQ(G)::B(B)+P(D)
- R(b);OGATE::P(C),XR(b)
- R(b);N_GUARD::QAR1(G),XR(b)
- R(b);OGATE::P(D),XR(b)
- R(b);OGATE::B(B)+P(D),XR(b)
- R(b);OGATE::B(B)+P(D)
- B(e);SBLOCK::QAB1(G)
- B(e);N_GUARD::QAR1(G),XB(e)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(f);N_GUARD::QAB1(G)
- S(f);N_GUARD::QAB1(G),XS(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).