MESON Chess Problem Database
Problem Display
PID: 261272 (4br2/2p5/1pPp2P1/3k1N2/p3R1Q1/1q1N1K1p/B1Rb1B2/3n3r w - - 0 1)
Cramatte, Jacques
Neue Zurcher Zeitung, 1981
#2
10 + 12
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rxf5+
- 2.Qxf5#
- 1...Rg8
- 2.Se7#
- 1...Rh8
- 2.Se7#
- 1...Be3
- 2.Sb4#
- 1...Bf4
- 2.Se7#
- 1...Bf7
- 2.Se7#
- 1...Sc3
- 2.Sb4#
- 1...Se3
- 2.Sf4#
- 1...a3
- 2.Bxb3#
- 1...Rxf5+
- Tries
- 1.Rc3?
- threat
- 2.Sb4#
- 1...Rxf5+
- 2.Qxf5#
- 1...Bxc3!
- threat
- 1.Re1?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Rxf5+
- 2.Qxf5#
- 1...Bxe1
- 2.Qe4#
- 1...Sxf2
- 2.Qd4#
- 1...Qc4
- 2.Qxc4#
- 2.Qe4#
- 1...Bc3
- 2.Qe4#
- 1...Be3
- 2.Qe4#
- 1...Sc3
- 2.Sb4#
- 1...Se3
- 2.Qe4#
- 1...Bf4
- 2.Se7#
- 1...Rxe1!
- threat
- 1.Re7?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Rxf5+
- 2.Qxf5#
- 1...Sxf2
- 2.Qd4#
- 1...Qc4
- 2.Qxc4#
- 2.Qe4#
- 1...Bc3
- 2.Qe4#
- 1...Sc3
- 2.Sb4#
- 1...Re1
- 2.Qd4#
- 1...Be3
- 2.Sb4#
- 2.Qe4#
- 1...Bf4!
- threat
- 1.Rxe8?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Rxf5+
- 2.Qxf5#
- 1...Sxf2
- 2.Qd4#
- 1...Qc4
- 2.Qxc4#
- 2.Qe4#
- 1...Bc3
- 2.Qe4#
- 1...Sc3
- 2.Sb4#
- 1...Re1
- 2.Qd4#
- 1...Be3
- 2.Sb4#
- 2.Qe4#
- 1...Bf4
- 2.Se7#
- 1...Rxe8!
- threat
- 1.Qf4?
- threat
- 2.Se7#
- 1...Rxf5
- 2.Qxf5#
- 1...Rf7!
- threat
- 1.Rc3?
- Keys
- 1.Re2!
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Rxf5+
- 2.Qxf5#
- 1...Sxf2
- 2.Qd4#
- 1...Qc4
- 2.Qxc4#
- 2.Qe4#
- 1...Bc3
- 2.Qe4#
- 1...Be3
- 2.Qe4#
- 1...Sc3
- 2.Sb4#
- 1...Se3
- 2.Qe4#
- 1...Bf4
- 2.Se7#
- threat
- 1.Re2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(l);CHECK,OGATE,XS(H)::QAR2(G),XR(l)
- R(l);::S(H)
- B(c);N_PINS(D),P_PINS(H)::S(D)
- B(c);::S(H)
- B(k);::S(H)
- S(a);N_PINS(D),P_PINS(H)::S(D)
- P(f);N_GUARD::B(A),XQ(d)
- Tries
- Try
- R(B);N_SPINS(D),P_SPINS(H)
- Threat
- S(D)
- Vars
- R(l);CHECK,OGATE,XS(H)::QAR2(G),XR(l)
- Refutation
- B(c);XR(B)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- R(l);CHECK,OGATE,XS(H)::QAR2(G),XR(l)
- B(c);XR(F)::QAB1(G)
- S(a);XB(C)::QAR1(G)
- B(c);N_PINS(D),P_PINS(H)::QAB1(G)
- S(a);N_PINS(D),P_PINS(H)::S(D)
- S(a);N_PINS(D),P_PINS(H)::QAB1(G)
- B(c);::S(H)
- Refutation
- R(b);XR(F)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- R(l);CHECK,OGATE,XS(H)::QAR2(G),XR(l)
- S(a);XB(C)::QAR1(G)
- B(c);N_PINS(D),P_PINS(H)::QAB1(G)
- S(a);N_PINS(D),P_PINS(H)::S(D)
- R(b);::QAR1(G)
- Refutation
- B(c);
- Try
- R(F);XB(k)
- Threat
- DUALS(2)
- Vars
- R(l);CHECK,OGATE,XS(H)::QAR2(G),XR(l)
- S(a);XB(C)::QAR1(G)
- B(c);N_PINS(D),P_PINS(H)::QAB1(G)
- S(a);N_PINS(D),P_PINS(H)::S(D)
- R(b);::QAR1(G)
- B(c);::S(H)
- Refutation
- R(l);XR(F)
- Try
- Q(G);
- Threat
- S(H)
- Vars
- R(l);OGATE,P_PINQ(G),XS(H)::QAR2(G),XR(l)
- Refutation
- R(l);
- Try
- Actual
- R(F);
- Threat
- DUALS(2)
- Vars
- R(l);CHECK,OGATE,XS(H)::QAR2(G),XR(l)
- S(a);XB(C)::QAR1(G)
- B(c);N_PINS(D),P_PINS(H)::QAB1(G)
- S(a);N_PINS(D),P_PINS(H)::S(D)
- S(a);N_PINS(D),P_PINS(H)::QAB1(G)
- B(c);::S(H)
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).