MESON Chess Problem Database
Problem Display
PID: 241355 (4b3/2p1K1p1/1N5N/3Bk3/2r1p1r1/2PP1PP1/8/4Q3 w - - 0 1)
Gavrilov, Constantin Grigorievich
Revista Romana de Sah, 1938
#2
9 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxc3
- 2.Qxc3#
- 1...Rc5
- 2.d4#
- 1...Rc6
- 2.d4#
- 1...Rxg3
- 2.Qxg3#
- 1...Rg5
- 2.f4#
- 1...Rg6
- 2.f4#
- 1...Rxc3
- Tries
- 1.Be6?
- threat
- 2.Sxc4#
- 2.Sxg4#
- 1...Rxc3
- 2.Qxc3#
- 1...Rxg3
- 2.Qxg3#
- 1...cxb6
- 2.Sxg4#
- 1...gxh6
- 2.Sxc4#
- 1...Ra4
- 2.Sxg4#
- 1...Rb4
- 2.Sxg4#
- 1...Rd4
- 2.Sxg4#
- 1...Rc5
- 2.Sxg4#
- 2.d4#
- 1...Rc6
- 2.Sxg4#
- 2.d4#
- 1...Rf4
- 2.Sxc4#
- 1...Rh4
- 2.Sxc4#
- 1...Rg5
- 2.Sxc4#
- 2.f4#
- 1...Rg6
- 2.Sxc4#
- 2.f4#
- 1...Bb5
- 2.Sxg4#
- 2.Sf7#
- 1...Bh5
- 2.Sxc4#
- 2.Sd7#
- 1...e3!
- threat
- 1.dxe4?
- threat
- 2.Sxc4#
- 2.Sxg4#
- 1...Rxc3
- 2.Qxc3#
- 1...Rxg3
- 2.Qxg3#
- 1...Rgxe4
- 2.f4#
- 1...cxb6
- 2.Sxg4#
- 1...gxh6
- 2.Sxc4#
- 1...Ra4
- 2.Sxg4#
- 1...Rb4
- 2.Sxg4#
- 1...Rd4
- 2.Sxg4#
- 1...Rc5
- 2.Sxg4#
- 1...Rc6
- 2.Sxg4#
- 1...Rf4
- 2.Sxc4#
- 1...Rh4
- 2.Sxc4#
- 1...Rg5
- 2.Sxc4#
- 2.f4#
- 1...Rg6
- 2.Sxc4#
- 2.f4#
- 1...Bb5
- 2.Sxg4#
- 2.Sf7#
- 1...Bh5
- 2.Sxc4#
- 2.Sd7#
- 1...Bd7
- 2.Sxc4#
- 2.Sxd7#
- 2.Sf7#
- 1...Rcxe4!
- threat
- 1.fxe4?
- threat
- 2.Sxc4#
- 2.Sxg4#
- 1...Rxc3
- 2.Qxc3#
- 1...Rcxe4
- 2.d4#
- 1...Rxg3
- 2.Qxg3#
- 1...cxb6
- 2.Sxg4#
- 1...gxh6
- 2.Sxc4#
- 1...Ra4
- 2.Sxg4#
- 1...Rb4
- 2.Sxg4#
- 1...Rd4
- 2.Sxg4#
- 1...Rc5
- 2.Sxg4#
- 2.d4#
- 1...Rc6
- 2.Sxg4#
- 2.d4#
- 1...Rf4
- 2.Sxc4#
- 1...Rh4
- 2.Sxc4#
- 1...Rg5
- 2.Sxc4#
- 1...Rg6
- 2.Sxc4#
- 1...Bb5
- 2.Sxg4#
- 2.Sf7#
- 1...Bh5
- 2.Sxc4#
- 2.Sd7#
- 1...Bd7
- 2.Sxc4#
- 2.Sxd7#
- 2.Sf7#
- 1...Rgxe4!
- threat
- 1.Be6?
- Keys
- 1.Bxe4!
- threat
- 2.Sxc4#
- 2.Sxg4#
- 1...Rxc3
- 2.Qxc3#
- 1...Rcxe4
- 2.d4#
- 1...Rxg3
- 2.Qxg3#
- 1...Rgxe4
- 2.f4#
- 1...cxb6
- 2.Sxg4#
- 1...gxh6
- 2.Sxc4#
- 1...Ra4
- 2.Sxg4#
- 1...Rb4
- 2.Sxg4#
- 1...Rd4
- 2.Sxg4#
- 1...Rc5
- 2.Sxg4#
- 2.d4#
- 1...Rc6
- 2.Sxg4#
- 2.d4#
- 1...Rf4
- 2.Sxc4#
- 1...Rh4
- 2.Sxc4#
- 1...Rg5
- 2.Sxc4#
- 2.f4#
- 1...Rg6
- 2.Sxc4#
- 2.f4#
- 1...Bb5
- 2.Sxg4#
- 2.Sf7#
- 1...Bh5
- 2.Sxc4#
- 2.Sd7#
- 1...Bd7
- 2.Sxc4#
- 2.Sxd7#
- 2.Sf7#
- 1...Bf7
- 2.Sd7#
- 2.Sxg4#
- 2.Sxf7#
- threat
- 1.Bxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 4
- Sets
- R(a);OGATE,XP(B)::QAB(A),XR(a)
- R(a);N_GUARD::P(C)
- R(c);OGATE,XP(E)::QAB(A),XR(c)
- R(c);N_GUARD::P(D)
- Tries
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,XP(B)::QAB(A),XR(a)
- R(c);OGATE,XP(E)::QAB(A),XR(c)
- P(e);XS(G)::S(H),XR(c)
- P(f);XS(H)::S(G),XR(a)
- R(a);::S(H),XR(c)
- R(c);::S(G),XR(a)
- Refutation
- P(b);
- Try
- P(C);XP(b)
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,XP(B)::QAB(A),XR(a)
- R(c);OGATE,XP(E)::QAB(A),XR(c)
- R(c);N_GUARD,P_SPINR(c),XP(C)::P(D)
- P(e);XS(G)::S(H),XR(c)
- P(f);XS(H)::S(G),XR(a)
- R(a);::S(H),XR(c)
- R(c);::S(G),XR(a)
- Refutation
- R(a);P_SPINR(a),XP(C)
- Try
- P(D);XP(b)
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,XP(B)::QAB(A),XR(a)
- R(a);N_GUARD,P_SPINR(a),XP(D)::P(C)
- R(c);OGATE,XP(E)::QAB(A),XR(c)
- P(e);XS(G)::S(H),XR(c)
- P(f);XS(H)::S(G),XR(a)
- R(a);::S(H),XR(c)
- R(c);::S(G),XR(a)
- Refutation
- R(c);P_SPINR(c),XP(D)
- Try
- Actual
- B(F);XP(b)
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,XP(B)::QAB(A),XR(a)
- R(a);N_GUARD,P_SPINR(a),XB(F)::P(C)
- R(c);OGATE,XP(E)::QAB(A),XR(c)
- R(c);N_GUARD,P_SPINR(c),XB(F)::P(D)
- P(e);XS(G)::S(H),XR(c)
- P(f);XS(H)::S(G),XR(a)
- R(a);::S(H),XR(c)
- R(c);::S(G),XR(a)
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).