MESON Chess Problem Database
Problem Display
PID: 22280 (1n6/bb1R2r1/4N3/1Q3P1n/3pkPPp/3R3p/3P2q1/3K1N1B w - - 0 1)
Kuijers, LA
2nd Prize, Haagsche Post, 1917
#2
11 + 10
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
SOLUTION
- SOUND
- Sets
- 1...Qf3+
- 2.Bxf3#
- 1...h2
- 2.Bxg2#
- 1...Qf3+
- Tries
- 1.Ra3?
- threat
- 2.Qe2#
- 2.Qd3#
- 2.Qe5#
- 1...Qf3+
- 2.Bxf3#
- 2.Qe2#
- 1...Rxg4
- 2.Qd3#
- 2.Qe5#
- 1...Rxd7
- 2.Qe5#
- 1...Sxd7
- 2.Qxb7#
- 1...d3
- 2.Qxd3#
- 1...Bc5
- 2.Qe2#
- 2.Qd3#
- 1...Bd5
- 2.Qe2#
- 2.Qd3#
- 2.Qxd5#
- 1...Ba6
- 2.Qd5#
- 2.Qe5#
- 1...Sg3
- 2.Qd3#
- 2.Qe5#
- 1...Sc6
- 2.Qe2#
- 2.Qd3#
- 2.Qd5#
- 1...Sxf4!
- threat
- 1.Rb3?
- threat
- 2.Qe2#
- 2.Qd3#
- 2.Qe5#
- 1...Qf3+
- 2.Bxf3#
- 2.Qe2#
- 1...Rxg4
- 2.Qd3#
- 2.Qe5#
- 1...Rxd7
- 2.Qe5#
- 1...Sxd7
- 2.Qxb7#
- 1...d3
- 2.Qxd3#
- 1...Bc5
- 2.Qe2#
- 2.Qd3#
- 1...Bd5
- 2.Qe2#
- 2.Qd3#
- 2.Qxd5#
- 1...Ba6
- 2.Qd5#
- 2.Qe5#
- 1...Sg3
- 2.Qd3#
- 2.Qe5#
- 1...Sc6
- 2.Qe2#
- 2.Qd3#
- 2.Qd5#
- 1...Sxf4!
- threat
- 1.Rc3?
- threat
- 2.Qe2#
- 2.Qd3#
- 2.Qe5#
- 1...Qf3+
- 2.Bxf3#
- 2.Qe2#
- 1...Rxg4
- 2.Qd3#
- 2.Qe5#
- 1...Rxd7
- 2.Qe5#
- 1...Sxd7
- 2.Qxb7#
- 1...dxc3
- 2.Qd3#
- 1...d3
- 2.Qxd3#
- 1...Bc5
- 2.Qe2#
- 2.Qd3#
- 1...Bd5
- 2.Qe2#
- 2.Qd3#
- 2.Qxd5#
- 1...Ba6
- 2.Qd5#
- 2.Qe5#
- 1...Sg3
- 2.Qd3#
- 2.Qe5#
- 1...Sc6
- 2.Qe2#
- 2.Qd3#
- 2.Qd5#
- 1...Sxf4!
- threat
- 1.Rxh3?
- threat
- 2.Bxg2#
- 2.Qe2#
- 2.Qd3#
- 2.Qe5#
- 2.d3#
- 1...Qf3+
- 2.Bxf3#
- 2.Qe2#
- 1...Qxh1
- 2.Qe2#
- 2.Qd3#
- 2.Qe5#
- 2.d3#
- 1...Rxg4
- 2.Qd3#
- 2.Qe5#
- 2.d3#
- 1...Rxd7
- 2.Bxg2#
- 2.Qe5#
- 2.d3#
- 1...Sxd7
- 2.Bxg2#
- 2.Qxb7#
- 2.d3#
- 1...Sg3
- 2.Bxg2#
- 1...Bc5
- 2.Bxg2#
- 2.Qe2#
- 2.Qd3#
- 2.d3#
- 1...Bd5
- 2.Bxg2#
- 2.Qe2#
- 2.Qd3#
- 2.Qxd5#
- 2.d3#
- 1...Ba6
- 2.Bxg2#
- 2.Qd5#
- 2.Qe5#
- 2.d3#
- 1...Sc6
- 2.Bxg2#
- 2.Qe2#
- 2.Qd3#
- 2.Qd5#
- 2.d3#
- 1...d3
- 2.Bxg2#
- 2.Qxd3#
- 2.Qe5#
- 1...Sxf4!
- threat
- 1.R3xd4+?
- 1...Kf3
- 2.Qe2#
- 1...Bxd4!
- 1...Kf3
- 1.Qc4?
- threat
- 2.Re3#
- 1...Qf3+
- 2.Bxf3#
- 1...Rxg4!
- threat
- 1.Ra3?
- Keys
- 1.Rf3!
- threat
- 2.Qd3#
- 1...Qxf1+
- 2.Rxf1#
- 1...Qxf3+
- 2.Qe2#
- 1...Qxd2+
- 2.Sxd2#
- 1...Qe2+
- 2.Qxe2#
- 1...Kxf3
- 2.Qe2#
- 1...Rxd7
- 2.Sg5#
- 1...Sxf4
- 2.Rxf4#
- 1...Sxd7
- 2.Qxb7#
- 1...Ba6
- 2.Qd5#
- 1...d3
- 2.Qxd3#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- Q(a);CHECK,OGATE::B(C),XQ(a)
- P(b);N_GUARD::B(C),XQ(a)
- Tries
- Try
- R(E);
- Threat
- DUALS(3)
- Vars
- R(i);XR(K)::QAR1(H)
- S(j);N_GUARD,XR(K)::QAB(H),XB(h)
- P(c);::QAB1(H),XP(c)
- Refutation
- S(f);XP(F)
- Try
- R(E);
- Threat
- DUALS(3)
- Vars
- R(i);XR(K)::QAR1(H)
- S(j);N_GUARD,XR(K)::QAB(H),XB(h)
- P(c);::QAB1(H),XP(c)
- Refutation
- S(f);XP(F)
- Try
- R(E);
- Threat
- DUALS(3)
- Vars
- R(i);XR(K)::QAR1(H)
- S(j);N_GUARD,XR(K)::QAB(H),XB(h)
- P(c);XR(E)::QAB1(H)
- P(c);::QAB1(H),XP(c)
- Refutation
- S(f);XP(F)
- Try
- R(E);XP(b)
- Threat
- DUALS(5)
- Vars
- S(f);::B(C),XQ(a)
- Refutation
- S(f);XP(F)
- Try
- R(E);CHECK,XP(c)
- Vars
- K(d);S_FLIGHT::QAB1(H)
- Refutation
- B(g);XR(E)
- Try
- Q(H);P_PINP(c)
- Threat
- R1(E)
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- Refutation
- R(i);XP(G)
- Try
- Actual
- R(E);N_PINQ(a)
- Threat
- QAB1(H)
- Vars
- Q(a);CHECK,OGATE,XS(B)::B(C)+R(E),XQ(a)
- Q(a);CHECK,N_GUARD,P_SPINQ(a),XR(E)::QAR2(H)
- Q(a);CHECK,XP(D)::S(B),XQ(a)
- Q(a);CHECK,N_GUARD::QAR2(H),XQ(a)
- K(d);P_SPINQ(a),S_FLIGHT,XR(E)::QAB1(H)
- R(i);N_GUARD,XR(K)::S(J)
- S(f);OGATE,XP(F)::R1(E),XS(f)
- S(j);N_GUARD,XR(K)::QAB(H),XB(h)
- B(h);N_GUARD::QAB1(H)
- P(c);::QAB1(H),XP(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).