MESON Chess Problem Database
Problem Display
PID: 56102 (4r2b/1p1pR2r/Bp1B3p/n6R/3k1N2/p5p1/q3Q1K1/1N6 w - - 0 1)
Murarasu, Ion
Troll, 1993
#2
8 + 12
| 6113 | Problemschach-Jahrbuch (1993) | 1994 |
SOLUTION
- SOUND
- Sets
- 1...Qxb1
- 2.Qe3#
- 1...Qb3
- 2.Qe4#
- 1...Qc4
- 2.Qe3#
- 2.Qe4#
- 1...Qd5+
- 2.Rxd5#
- 1...Qe6
- 2.Qd3#
- 1...Qf7
- 2.Qd1#
- 2.Qd3#
- 2.Qd2#
- 2.Qe3#
- 2.Qe4#
- 1...Qg8
- 2.Qd1#
- 2.Qd3#
- 2.Qd2#
- 2.Qe3#
- 2.Qe4#
- 1...Qa1
- 2.Rd5#
- 2.Qd1#
- 2.Qd3#
- 2.Qd2#
- 2.Qe3#
- 2.Qe4#
- 1...Qb2
- 2.Rd5#
- 1...Qc2
- 2.Rd5#
- 1...Qd2
- 2.Rd5#
- 2.Qxd2#
- 1...Qxe2+
- 2.Sxe2#
- 1...Ra8
- 2.Re4#
- 1...Rb8
- 2.Re4#
- 1...Rc8
- 2.Re4#
- 1...Rd8
- 2.Re4#
- 1...Rf8
- 2.Re4#
- 1...Rg8
- 2.Re4#
- 1...Sb3
- 2.Rd5#
- 1...Sc4
- 2.Rd5#
- 1...b5
- 2.Bc5#
- 1...Qxb1
- Tries
- 1.Kg1?
- threat
- 2.Qd3#
- 2.Qe3#
- 2.Qe4#
- 1...Qxe2
- 2.Sxe2#
- 2.Rd5#
- 1...Rhxe7
- 2.Qd3#
- 1...Rexe7
- 2.Qd3#
- 1...bxa6
- 2.Qd3#
- 2.Qe4#
- 1...Qb3
- 2.Qe4#
- 1...Qc4
- 2.Qe3#
- 2.Qe4#
- 1...Qd5
- 2.Rxd5#
- 2.Qd1#
- 2.Qd3#
- 2.Qd2#
- 2.Qe3#
- 1...Qe6
- 2.Qd3#
- 1...Qc2
- 2.Rd5#
- 2.Qe3#
- 1...Qd2
- 2.Rd5#
- 2.Qxd2#
- 2.Qe4#
- 1...Be5
- 2.Qd3#
- 2.Qxe5#
- 1...Sc4
- 2.Rd5#
- 2.Qd3#
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 2.Qd3#
- 2.Qe4#
- 1...Qxb1+!
- threat
- 1.Kf3?
- threat
- 2.Qd3#
- 2.Qe3#
- 2.Qe4#
- 1...Qd5+
- 2.Rxd5#
- 1...Qxe2+
- 2.Sxe2#
- 1...Qxb1
- 2.Qe3#
- 1...Rhxe7
- 2.Qd3#
- 1...Rexe7
- 2.Qd3#
- 1...bxa6
- 2.Qd3#
- 2.Qe4#
- 1...Qc4
- 2.Qe3#
- 2.Qe4#
- 1...Qe6
- 2.Qd1#
- 2.Qd3#
- 2.Qd2#
- 1...Qc2
- 2.Rd5#
- 2.Qe3#
- 1...Qd2
- 2.Rd5#
- 2.Qxd2#
- 2.Qe4#
- 1...Sc4
- 2.Rd5#
- 2.Qd3#
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 2.Qd3#
- 2.Qe4#
- 1...Qb3+!
- threat
- 1.Kh3?
- threat
- 2.Qd3#
- 2.Qe3#
- 2.Qe4#
- 1...Qxb1
- 2.Qe3#
- 1...Qxe2
- 2.Sxe2#
- 2.Rd5#
- 1...Rhxe7
- 2.Qd3#
- 1...Rexe7
- 2.Qd3#
- 1...bxa6
- 2.Qd3#
- 2.Qe4#
- 1...Qb3
- 2.Qe4#
- 1...Qc4
- 2.Qe3#
- 2.Qe4#
- 1...Qd5
- 2.Rxd5#
- 2.Qd1#
- 2.Qd3#
- 2.Qd2#
- 2.Qe3#
- 1...Qc2
- 2.Rd5#
- 2.Qe3#
- 1...Qd2
- 2.Rd5#
- 2.Qxd2#
- 2.Qe4#
- 1...Be5
- 2.Qd3#
- 2.Qxe5#
- 1...Sc4
- 2.Rd5#
- 2.Qd3#
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 2.Qd3#
- 2.Qe4#
- 1...Qe6+!
- threat
- 1.Se6+?
- 1...Qxe6
- 2.Qd3#
- 1...dxe6!
- 1...Qxe6
- 1.Bb4?
- threat
- 2.Bc3#
- 1...Qd5+
- 2.Rxd5#
- 1...Qxe2+
- 2.Sxe2#
- 1...Qxb1
- 2.Rd5#
- 2.Qe3#
- 1...Qb3
- 2.Qe4#
- 1...Qc4
- 2.Qe3#
- 2.Qe4#
- 1...Qa1
- 2.Rd5#
- 2.Qd1#
- 2.Qd3#
- 2.Qd2#
- 2.Qe3#
- 2.Qe4#
- 1...Qb2
- 2.Rd5#
- 1...Qc2
- 2.Rd5#
- 1...Qd2
- 2.Rd5#
- 2.Qxd2#
- 1...Rc8
- 2.Re4#
- 1...d5
- 2.Se6#
- 1...Be5!
- threat
- 1.Qb2+?
- 1...axb2
- 2.Se2#
- 1...Qxb2+!
- 1...axb2
- 1.Kg1?
- Keys
- 1.Bc7!
- threat
- 2.Bxb6#
- 1...Qd5+
- 2.Rxd5#
- 1...Qxe2+
- 2.Sxe2#
- 1...Qxb1
- 2.Qe3#
- 1...Qb3
- 2.Qe4#
- 1...Qc4
- 2.Qe3#
- 2.Qe4#
- 1...Qe6
- 2.Qd3#
- 1...Qb2
- 2.Rd5#
- 1...Qc2
- 2.Rd5#
- 1...Rc8
- 2.Re4#
- 1...Sb3
- 2.Rd5#
- 1...Sc4
- 2.Rd5#
- 1...b5
- 2.Bb6#
- threat
- 1.Bc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(a);N_PINQ(B),XS(A)::QAB1(B)
- Q(a);N_PINQ(B)::QAR1(B)
- Q(a);CHECK,N_GUARD,N_PINQ(B)::R1(E),XQ(a)
- Q(a);N_GUARD::R1(E)
- Q(a);CHECK,XQ(B)::S(D),XQ(a)
- R(k);N_GUARD::R1(H)
- S(e);S_CUTQ(a)::R1(E)
- P(f);N_GUARD::B(G)
- Tries
- Try
- K(C);N_SPINQ(B),P-FLIGHT
- Threat
- DUALS(3)
- Vars
- R(j);XR(H)::QAR1(B)
- R(k);XR(H)::QAR1(B)
- Q(a);::QAR1(B)
- Refutation
- Q(a);CHECK,XS(A)
- Try
- K(C);N_SPINQ(B),S_FLIGHT
- Threat
- DUALS(3)
- Vars
- Q(a);CHECK,N_GUARD::R1(E),XQ(a)
- Q(a);CHECK,XQ(B)::S(D),XQ(a)
- Q(a);XS(A)::QAB1(B)
- R(j);XR(H)::QAR1(B)
- R(k);XR(H)::QAR1(B)
- Refutation
- Q(a);CHECK
- Try
- K(C);N_SPINQ(B),S_FLIGHT
- Threat
- DUALS(3)
- Vars
- Q(a);XS(A)::QAB1(B)
- R(j);XR(H)::QAR1(B)
- R(k);XR(H)::QAR1(B)
- Q(a);::QAR1(B)
- Refutation
- Q(a);CHECK
- Try
- S(D);CHECK
- Vars
- Q(a);N_PINQ(B),XS(D)::QAR1(B)
- Refutation
- P(i);XS(D)
- Try
- B(G);
- Threat
- B(G)
- Vars
- Q(a);CHECK,N_GUARD,N_PINQ(B)::R1(E),XQ(a)
- Q(a);CHECK,XQ(B)::S(D),XQ(a)
- Q(a);N_PINQ(B)::QAR1(B)
- Q(a);N_GUARD::R1(E)
- R(k);N_GUARD::R1(H)
- P(i);N_GUARD,S_CUTQ(a)::S(D)
- Refutation
- B(l);
- Try
- Q(B);CHECK
- Vars
- P(b);XQ(B)::S(D)
- Refutation
- Q(a);CHECK,XQ(B)
- Try
- Actual
- B(G);
- Threat
- B(G),XP(f)
- Vars
- Q(a);CHECK,N_GUARD,N_PINQ(B)::R1(E),XQ(a)
- Q(a);CHECK,XQ(B)::S(D),XQ(a)
- Q(a);N_PINQ(B),XS(A)::QAB1(B)
- Q(a);N_PINQ(B)::QAR1(B)
- Q(a);N_GUARD::R1(E)
- R(k);N_GUARD::R1(H)
- S(e);S_CUTQ(a)::R1(E)
- P(f);::B(G)
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).