MESON Chess Problem Database
Problem Display
PID: 259544 (4K3/1B2N2Q/4r3/6p1/2p3p1/2P1k1Pp/R7/4N3 w - - 0 1)
Anonymous
Vecherni Moskva, 1933
(First published on Sat Jan 28 1933)
#2
8 + 6
| 15239 | Valois Notebooks | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Qxe4#
- 1...Ra6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...Rb6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...Rc6
- 2.Sd5#
- 1...Rd6
- 2.Sf5#
- 2.Qe4#
- 1...Rf6
- 2.Sd5#
- 2.Qe4#
- 1...Rg6
- 2.Sf5#
- 1...Rh6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...Rxe7+
- 2.Qxe7#
- 1...h2
- 2.Sg2#
- 1...Re4
- Tries
- 1.Bf3?
- threat
- 2.Re2#
- 1...Rxe7+
- 2.Qxe7#
- 1...gxf3!
- threat
- 1.Bd5?
- 1...Rxe7+
- 2.Qxe7#
- 1...Re4
- 2.Qxe4#
- 1...Ra6
- 2.Sf5#
- 2.Qe4#
- 1...Rb6
- 2.Sf5#
- 2.Qe4#
- 1...Rc6
- 2.Sf5#
- 2.Qe4#
- 1...Rd6
- 2.Sf5#
- 2.Qe4#
- 1...Rf6
- 2.Qe4#
- 1...Rg6
- 2.Sf5#
- 1...Rh6
- 2.Sf5#
- 2.Qe4#
- 1...h2
- 2.Sg2#
- 1...Re5!
- 1...Rxe7+
- 1.Bc6?
- 1...Rxe7+
- 2.Qxe7#
- 1...Rxc6
- 2.Sd5#
- 1...Re4
- 2.Qxe4#
- 1...Rd6
- 2.Sf5#
- 2.Qe4#
- 1...Rf6
- 2.Sd5#
- 2.Qe4#
- 1...Rg6
- 2.Sf5#
- 1...Rh6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...h2
- 2.Sg2#
- 1...Re5!
- 1...Rxe7+
- 1.Ba8?
- 1...Rxe7+
- 2.Qxe7#
- 1...Re4
- 2.Qxe4#
- 1...Ra6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...Rb6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...Rc6
- 2.Sd5#
- 1...Rd6
- 2.Sf5#
- 2.Qe4#
- 1...Rf6
- 2.Sd5#
- 2.Qe4#
- 1...Rg6
- 2.Sf5#
- 1...Rh6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...h2
- 2.Sg2#
- 1...Re5!
- 1...Rxe7+
- 1.Rb2?
- 1...Rxe7+
- 2.Qxe7#
- 1...Re4
- 2.Qxe4#
- 1...Ra6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...Rb6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...Rc6
- 2.Sd5#
- 1...Rd6
- 2.Sf5#
- 2.Qe4#
- 1...Rf6
- 2.Sd5#
- 2.Qe4#
- 1...Rg6
- 2.Sf5#
- 1...Rh6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...h2
- 2.Sg2#
- 1...Re5!
- 1...Rxe7+
- 1.Rc2?
- 1...Rxe7+
- 2.Qxe7#
- 1...Re4
- 2.Qxe4#
- 1...Ra6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...Rb6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...Rc6
- 2.Sd5#
- 1...Rd6
- 2.Sf5#
- 2.Qe4#
- 1...Rf6
- 2.Sd5#
- 2.Qe4#
- 1...Rg6
- 2.Sf5#
- 1...Rh6
- 2.Sd5#
- 2.Sf5#
- 2.Qe4#
- 1...h2
- 2.Sg2#
- 1...Re5!
- 1...Rxe7+
- 1.Rg2?
- threat
- 2.Sc2#
- 1...Rxe7+
- 2.Qxe7#
- 1...Re4
- 2.Qxe4#
- 1...Rc6
- 2.Sd5#
- 1...Rg6
- 2.Sf5#
- 1...hxg2!
- threat
- 1.Qb1?
- threat
- 2.Qc1#
- 1...Rc6
- 2.Sd5#
- 2.Sf5#
- 1...Rd6
- 2.Sf5#
- 2.Qe4#
- 1...Rxe7+!
- threat
- 1.Qc2?
- threat
- 2.Qc1#
- 2.Qd2#
- 2.Qe2#
- 2.Qf2#
- 1...Rc6
- 2.Sd5#
- 2.Sf5#
- 2.Qe2#
- 1...Rd6
- 2.Sf5#
- 2.Qe4#
- 2.Qe2#
- 2.Qf2#
- 1...Rf6
- 2.Sd5#
- 2.Qe4#
- 2.Qc1#
- 2.Qd2#
- 2.Qe2#
- 1...Rxe7+!
- threat
- 1.Qf5?
- threat
- 2.Qxe6#
- 2.Qf2#
- 2.Qc5#
- 2.Qxg5#
- 1...Re5
- 2.Qf2#
- 2.Qxe5#
- 1...Re4
- 2.Qxe4#
- 2.Qf2#
- 1...Ra6
- 2.Sd5#
- 2.Qe4#
- 2.Qf2#
- 2.Qc5#
- 2.Qe5#
- 2.Qxg5#
- 1...Rb6
- 2.Sd5#
- 2.Qe4#
- 2.Qf2#
- 2.Qc5#
- 2.Qe5#
- 2.Qxg5#
- 1...Rc6
- 2.Sd5#
- 2.Qe5#
- 1...Rd6
- 2.Qe4#
- 2.Qf2#
- 2.Qe5#
- 2.Qxg5#
- 1...Rf6
- 2.Sd5#
- 2.Qe4#
- 2.Qc5#
- 2.Qe5#
- 1...Rg6
- 2.Sd5#
- 2.Qe4#
- 2.Qf2#
- 2.Qc5#
- 2.Qe5#
- 1...Rh6
- 2.Sd5#
- 2.Qe4#
- 2.Qf2#
- 2.Qc5#
- 2.Qe5#
- 2.Qxg5#
- 1...Rxe7+!
- threat
- 1.Bf3?
- Keys
- 1.Rh2!
- threat
- 2.Sc2#
- 1...Rxe7+
- 2.Qxe7#
- 1...Re4
- 2.Qxe4#
- 1...Rc6
- 2.Sd5#
- 1...Rg6
- 2.Sf5#
- threat
- 1.Rh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(f);N_GUARD::QAR1(G),XR(f)
- R(f);N_PINS(F)::S(F)
- R(f);CHECK,OGATE,XS(F)::QAR(G),XR(f)
- P(b);N_GUARD::S(A)
- Tries
- Try
- B(E);
- Threat
- R1(B)
- Vars
- R(f);CHECK,OGATE,XS(F)::QAR(G),XR(f)
- Refutation
- P(d);XB(E)
- Try
- B(E);
- Vars
- R(f);CHECK,OGATE,XS(F)::QAR(G),XR(f)
- R(f);N_GUARD::QAR1(G),XR(f)
- R(f);N_GUARD,N_PINS(F)::QAR1(G)
- R(f);N_PINS(F)::S(F)
- P(b);N_GUARD::S(A)
- Refutation
- R(f);
- Try
- B(E);
- Vars
- R(f);CHECK,OGATE,XS(F)::QAR(G),XR(f)
- R(f);N_PINS(F),XB(E)::S(F)
- R(f);N_GUARD::QAR1(G),XR(f)
- R(f);N_PINS(F)::S(F)
- P(b);N_GUARD::S(A)
- Refutation
- R(f);
- Try
- B(E);
- Vars
- R(f);CHECK,OGATE,XS(F)::QAR(G),XR(f)
- R(f);N_GUARD::QAR1(G),XR(f)
- R(f);N_PINS(F)::S(F)
- P(b);N_GUARD::S(A)
- Refutation
- R(f);
- Try
- R(B);
- Vars
- R(f);CHECK,OGATE,XS(F)::QAR(G),XR(f)
- R(f);N_GUARD::QAR1(G),XR(f)
- R(f);N_PINS(F)::S(F)
- P(b);N_GUARD::S(A)
- Refutation
- R(f);
- Try
- R(B);
- Vars
- R(f);CHECK,OGATE,XS(F)::QAR(G),XR(f)
- R(f);N_GUARD::QAR1(G),XR(f)
- R(f);N_PINS(F)::S(F)
- P(b);N_GUARD::S(A)
- Refutation
- R(f);
- Try
- R(B);
- Threat
- S(A)
- Vars
- R(f);CHECK,OGATE,XS(F)::QAR(G),XR(f)
- R(f);N_GUARD::QAR1(G),XR(f)
- R(f);N_PINS(F)::S(F)
- Refutation
- P(b);XR(B)
- Try
- Q(G);
- Threat
- QAB(G)
- Refutation
- R(f);CHECK,XS(F)
- Try
- Q(G);
- Threat
- DUALS(4)
- Refutation
- R(f);CHECK,XS(F)
- Try
- Q(G);
- Threat
- DUALS(4)
- Refutation
- R(f);CHECK,XS(F)
- Try
- Actual
- R(B);
- Threat
- S(A)
- Vars
- R(f);CHECK,OGATE,XS(F)::QAR(G),XR(f)
- R(f);N_GUARD::QAR1(G),XR(f)
- R(f);N_PINS(F)::S(F)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).