MESON Chess Problem Database
Problem Display
PID: 201542 (n7/3R2n1/8/KBk3N1/6pr/R6r/2P2P1B/2Q4b w - - 0 1)
Stooss, Walter
3rd Prize, Kagans Neueste Schachnachrichten, 1922
#2
9 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxh2
- 2.Rc3#
- 2.Qe3#
- 1...Rxa3+
- 2.Qxa3#
- 1...Rb3
- 2.cxb3#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.cxd3#
- 1...Re3
- 2.Qxe3#
- 1...Rf3
- 2.Se4#
- 1...Bf3
- 2.Rc3#
- 2.Qe3#
- 1...Be4
- 2.Sxe4#
- 1...Sf5
- 2.Se6#
- 1...Sh5
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Se8
- 2.Se6#
- 1...Rxh2
- Tries
- 1.Bg3?
- threat
- 2.Rc3#
- 2.Qe3#
- 1...Bd5
- 2.Qe3#
- 1...Sf5
- 2.Se6#
- 2.Rc3#
- 1...Se6
- 2.Sxe6#
- 2.Rc3#
- 1...Sb6
- 2.Qe3#
- 1...Rxg3!
- threat
- 1.Rad3?
- threat
- 2.Bd6#
- 2.Qa3#
- 1...Rxh2
- 2.Rc3#
- 2.Qa3#
- 2.Qe3#
- 1...Rxd3
- 2.cxd3#
- 1...Rg3
- 2.Qa3#
- 1...Rh6
- 2.Qa3#
- 1...Sf5
- 2.Se6#
- 2.Qa3#
- 1...Se8
- 2.Se6#
- 2.Qa3#
- 1...g3!
- threat
- 1.Rg3?
- threat
- 2.Qa3#
- 2.Qe3#
- 1...Bd5
- 2.Qe3#
- 1...Sf5
- 2.Se6#
- 2.Qa3#
- 1...Se6
- 2.Sxe6#
- 2.Qa3#
- 1...Rxg3!
- threat
- 1.Qb2?
- threat
- 2.Qd4#
- 2.Qb4#
- 1...Rxa3+
- 2.Qxa3#
- 1...Rb3
- 2.Qd4#
- 1...Rc3
- 2.Rxc3#
- 2.Qxc3#
- 2.Qb4#
- 1...Rd3
- 2.Qb4#
- 1...Bd5
- 2.Bd6#
- 2.Qb4#
- 1...Sf5
- 2.Se6#
- 2.Qb4#
- 1...Se6
- 2.Sxe6#
- 2.Qb4#
- 1...g3!
- threat
- 1.Qd2?
- threat
- 2.Bd6#
- 2.Qb4#
- 2.Qd4#
- 2.Qd6#
- 1...Rxh2
- 2.Rc3#
- 2.Qc3#
- 2.Qe3#
- 2.Qb4#
- 2.Qd4#
- 2.Qd6#
- 1...g3
- 2.Qd6#
- 1...Rb3
- 2.Bd6#
- 2.Qd4#
- 2.Qd6#
- 1...Rc3
- 2.Bd6#
- 2.Rxc3#
- 2.Qxc3#
- 2.Qd4#
- 2.Qd6#
- 1...Rd3
- 2.Qb4#
- 1...Rg3
- 2.Qb4#
- 2.Qd4#
- 2.Qd6#
- 1...Rh6
- 2.Qb4#
- 2.Qd4#
- 1...Bd5
- 2.Bd6#
- 2.Rxd5#
- 2.Qb4#
- 2.Qxd5#
- 1...Sf5
- 2.Se6#
- 2.Qb4#
- 1...Se6
- 2.Sxe6#
- 2.Bd6#
- 2.Qb4#
- 2.Qd6#
- 1...Se8
- 2.Se6#
- 2.Qb4#
- 2.Qd4#
- 1...Rxa3+!
- threat
- 1.Qf4?
- threat
- 2.Qd6#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.Qf8#
- 1...g3
- 2.Rc3#
- 2.Qd6#
- 2.Qf8#
- 1...Rb3
- 2.Qd6#
- 2.Qc4#
- 2.Qd4#
- 2.Qf8#
- 1...Rc3
- 2.Rxc3#
- 2.Qd6#
- 2.Qb4#
- 2.Qd4#
- 2.Qf8#
- 1...Rd3
- 2.Qb4#
- 2.Qc4#
- 1...Re3
- 2.Qxe3#
- 2.Qd6#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Rf3
- 2.Se4#
- 2.Qe5#
- 2.Qd6#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Rh6
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Rh8
- 2.Qd6#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Be4
- 2.Sxe4#
- 2.Qd6#
- 2.Qf8#
- 1...Bd5
- 2.Qb4#
- 1...Sf5
- 2.Se6#
- 2.Qb4#
- 2.Qc4#
- 1...Se6
- 2.Sxe6#
- 2.Qd6#
- 2.Qb4#
- 2.Qc4#
- 1...Se8
- 2.Se6#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Sb6
- 2.Qd6#
- 2.Qb4#
- 2.Qd4#
- 2.Qf8#
- 1...Rxa3+!
- threat
- 1.Qe1?
- threat
- 2.Qb4#
- 2.Qe7#
- 1...Bd5
- 2.Qb4#
- 1...g3
- 2.Qe7#
- 1...Rb3
- 2.Qe7#
- 1...Rc3
- 2.Rxc3#
- 2.Qxc3#
- 2.Qe7#
- 1...Rd3
- 2.Qb4#
- 1...Re3
- 2.Qb4#
- 2.Qxe3#
- 1...Rh6
- 2.Qb4#
- 1...Be4
- 2.Sxe4#
- 2.Qb4#
- 1...Sf5
- 2.Se6#
- 2.Qb4#
- 1...Se6
- 2.Sxe6#
- 2.Qb4#
- 1...Se8
- 2.Se6#
- 2.Qb4#
- 1...Rxa3+!
- threat
- 1.Qxh1?
- threat
- 2.Se4#
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 1...g3
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 1...Rd3
- 2.Se4#
- 2.Qc6#
- 1...Re3
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 1...Rf3
- 2.Se4#
- 1...Rh6
- 2.Se4#
- 2.Rd5#
- 2.Qd5#
- 1...Sb6
- 2.Se4#
- 2.Qc6#
- 1...Sc7
- 2.Se4#
- 2.Qc6#
- 1...Rxa3+!
- threat
- 1.Bg3?
- Keys
- 1.Bg1!
- threat
- 2.f3#
- 1...Rxa3+
- 2.Qxa3#
- 1...Rh2
- 2.Rc3#
- 2.Qe3#
- 1...Rb3
- 2.cxb3#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.cxd3#
- 1...Re3
- 2.Qxe3#
- 1...Rf3
- 2.Se4#
- 1...Rg3
- 2.fxg3#
- 1...Bf3
- 2.Rc3#
- 2.Qe3#
- 1...Sf5
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g3
- 2.f4#
- threat
- 1.Bg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(b);CHECK,OGATE,XR(E)::QAB(A),XR(b)
- R(b);OGATE::QAR(A)+P(B),XR(b)
- R(b);N_GUARD::R(E),XR(b)
- R(b);N_GUARD::QAB(A),XR(b)
- R(b);S_CUTB(a)::S(H)
- B(a);N_GUARD::S(H),XB(a)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- Tries
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- B(a);::QAB(A)
- S(g);::QAB(A)
- Refutation
- R(b);XB(D)
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(b);OGATE,XR(E)::QAR(A)+P(B),XR(b)
- R(b);::QAB(A)
- R(d);::QAB(A)
- Refutation
- P(c);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- B(a);::QAB(A)
- Refutation
- R(b);XR(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,OGATE,XR(E)::QAB(A),XR(b)
- R(b);::QAB1(A)
- Refutation
- P(c);
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- P(c);::QAB1(A)
- R(b);::QAB1(A)
- Refutation
- R(b);CHECK,XR(E)
- Try
- Q(A);
- Threat
- DUALS(5)
- Vars
- B(a);::QAB1(A)
- Refutation
- R(b);CHECK,XR(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(a);::QAB1(A)
- P(c);::QAB(A)
- R(b);::QAB(A)
- R(b);::QAB1(A)
- R(d);::QAB1(A)
- Refutation
- R(b);CHECK,XR(E)
- Try
- Q(A);XB(a)
- Threat
- DUALS(4)
- Vars
- R(b);::S(H)
- Refutation
- R(b);CHECK,XR(E)
- Try
- Actual
- B(D);
- Threat
- B(D)+P(C)
- Vars
- R(b);CHECK,OGATE,XR(E)::QAB(A),XR(b)
- R(b);OGATE::QAR(A)+P(B),XR(b)
- R(b);N_GUARD::R(E),XR(b)
- R(b);N_GUARD::QAB(A),XR(b)
- R(b);S_CUTB(a)::S(H)
- R(b);OGATE::B(D)+P(C),XR(b)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- P(c);S_CUTR(b)::B(D)+P(C)
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).