MESON Chess Problem Database
Problem Display
PID: 210430 (8/p4p2/P1RN1B2/RP1k2p1/P1p3Bp/1r3p1K/2N2P2/8 w - - 0 1)
Sontag, Gustav Joachim
Deutsche Schachblatter, 1936
#2
11 + 8
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Se3#
- 1...Rb2
- 2.Se3#
- 1...Ra3
- 2.Sb4#
- 1...Rc3
- 2.Sb4#
- 1...Rd3
- 2.Sb4#
- 1...Re3
- 2.Sxe3#
- 2.Sb4#
- 1...Rb4
- 2.Se3#
- 2.Sxb4#
- 1...Rxb5
- 2.Sb4#
- 1...c3
- 2.Se3#
- 1...Rb1
- Tries
- 1.Kh2?
- 1...Rxb5
- 2.Sb4#
- 1...Rb1
- 2.Se3#
- 1...Rb2
- 2.Se3#
- 1...Ra3
- 2.Sb4#
- 1...Rc3
- 2.Sb4#
- 1...Rd3
- 2.Sb4#
- 1...Re3
- 2.Sxe3#
- 2.Sb4#
- 1...Rb4
- 2.Se3#
- 2.Sxb4#
- 1...c3
- 2.Se3#
- 1...h3!
- 1...Rxb5
- 1.Bf5?
- 1...Rxb5
- 2.Sb4#
- 1...Ra3
- 2.Sb4#
- 1...Rb1
- 2.Se3#
- 1...Rb2
- 2.Se3#
- 1...Rc3
- 2.Sb4#
- 1...Rd3
- 2.Sb4#
- 1...Re3
- 2.Sxe3#
- 2.Sb4#
- 1...Rb4
- 2.Se3#
- 2.Sxb4#
- 1...c3
- 2.Se3#
- 1...g4+!
- 1...Rxb5
- 1.Bd7?
- 1...Rxb5
- 2.Se3#
- 2.Sb4#
- 2.Rxb5#
- 1...Ra3
- 2.Sb4#
- 2.b6#
- 1...Rb1
- 2.Se3#
- 1...Rb2
- 2.Se3#
- 1...Rc3
- 2.Sb4#
- 2.b6#
- 1...Rd3
- 2.Sb4#
- 2.b6#
- 1...Re3
- 2.Sxe3#
- 2.Sb4#
- 2.b6#
- 1...Rb4
- 2.Se3#
- 2.Sxb4#
- 1...c3
- 2.Se3#
- 1...g4+!
- 1...Rxb5
- 1.Bc8?
- 1...Rxb5
- 2.Sb4#
- 1...Ra3
- 2.Sb4#
- 1...Rb1
- 2.Se3#
- 1...Rb2
- 2.Se3#
- 1...Rc3
- 2.Sb4#
- 1...Rd3
- 2.Sb4#
- 1...Re3
- 2.Sxe3#
- 2.Sb4#
- 1...Rb4
- 2.Se3#
- 2.Sxb4#
- 1...c3
- 2.Se3#
- 1...g4+!
- 1...Rxb5
- 1.b6+?
- 1...Rb5
- 2.Sb4#
- 1...Kxc6!
- 1...Rb5
- 1.Kh2?
- Keys
- 1.Sd4!
- 1...Rxb5
- 2.Bxf3#
- 2.Rxb5#
- 1...Rb1
- 2.Bxf3#
- 1...Rb2
- 2.Bxf3#
- 1...Ra3
- 2.b6#
- 1...Rc3
- 2.b6#
- 1...Rd3
- 2.b6#
- 1...Re3
- 2.b6#
- 1...Rb4
- 2.Bxf3#
- 1...c3
- 2.Bxf3#
- 1...Rxb5
- 1.Sd4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::S(A)
- R(a);N_GUARD,P_SPINR(a),XP(G)::S(A)
- P(c);S_CUTR(a)::S(A)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- R(a);N_GUARD,P_SPINR(a),XP(G)::S(A)
- R(a);N_GUARD::S(A)
- P(c);S_CUTR(a)::S(A)
- Refutation
- P(d);
- Try
- B(E);
- Vars
- R(a);N_GUARD,P_SPINR(a),XP(G)::S(A)
- R(a);N_GUARD::S(A)
- P(c);S_CUTR(a)::S(A)
- Refutation
- P(f);CHECK
- Try
- B(E);
- Vars
- R(a);N_GUARD::S(A)
- P(c);S_CUTR(a)::S(A)
- Refutation
- P(f);CHECK
- Try
- B(E);
- Vars
- R(a);N_GUARD,P_SPINR(a),XP(G)::S(A)
- R(a);N_GUARD::S(A)
- P(c);S_CUTR(a)::S(A)
- Refutation
- P(f);CHECK
- Try
- P(G);CHECK
- Vars
- R(a);P_SPINR(a)::S(A)
- Refutation
- K(e);S_FLIGHT,XR(I)
- Try
- Actual
- S(A);
- Vars
- R(a);N_GUARD::B(E),XP(b)
- R(a);N_GUARD::R(F)+P(G)
- P(c);S_CUTR(a)::B(E),XP(b)
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).