MESON Chess Problem Database
Problem Display
PID: 156179 (8/8/2pBB2K/2N5/r2k1N1R/r5Q1/1P3R2/2b5 w - - 0 1)
Rietveld, Johannes Jacob
Comm., Sports Referee, 1932
#2
9 + 5
| 1577 | Jaarboek | 1932 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qc3#
- 2.Qd3#
- 1...Ra2
- 2.Qc3#
- 2.Qd3#
- 1...Rc3
- 2.Qxc3#
- 2.bxc3#
- 1...Rd3
- 2.Qxd3#
- 1...Re3
- 2.Se2#
- 1...Bxb2
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Sg6#
- 1...Be3
- 2.Qg7#
- 1...Bxf4+
- 2.Rfxf4#
- 2.Rhxf4#
- 2.Qxf4#
- 1...Ra1
- Tries
- 1.Sb3+?
- 1...Ke4
- 2.Qd3#
- 2.Qf3#
- 1...Rxb3!
- 1...Ke4
- 1.Bb3?
- threat
- 2.Qc3#
- 2.Qd3#
- 1...Bxf4+
- 2.Rfxf4#
- 2.Rhxf4#
- 2.Qxf4#
- 1...Bxb2
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Sg6#
- 2.Rd2#
- 2.Qd3#
- 1...Rc4
- 2.Qd3#
- 1...Bd2
- 2.Rxd2#
- 2.Qd3#
- 1...Be3
- 2.Qg7#
- 1...Rxb3!
- threat
- 1.Rd2+?
- 1...Rd3
- 2.Se2#
- 2.Sg2#
- 2.Sfxd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Sg6#
- 2.Rxd3#
- 2.Qf2#
- 2.Qg1#
- 2.Qxd3#
- 1...Bxd2!
- 1...Rd3
- 1.Re2?
- threat
- 2.Re4#
- 2.Qg7#
- 1...Bxf4+
- 2.Rxf4#
- 2.Qxf4#
- 1...Rxg3
- 2.Re4#
- 1...Ra7
- 2.Re4#
- 1...Be3
- 2.Qg7#
- 1...Re3!
- threat
- 1.Qxa3?
- threat
- 2.Qc3#
- 2.Qd3#
- 1...Bxf4+
- 2.Rfxf4#
- 2.Rhxf4#
- 1...Bxb2
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Sg6#
- 2.Rd2#
- 2.Qd3#
- 1...Rc4
- 2.Qd3#
- 1...Bd2
- 2.Rxd2#
- 2.Qd3#
- 1...Rxa3!
- threat
- 1.Qf3?
- threat
- 2.Qe4#
- 1...Bxf4+
- 2.Rxf4#
- 2.Qxf4#
- 1...Bxb2
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Sg6#
- 1...Re3
- 2.Se2#
- 1...Rxf3!
- threat
- 1.Qg5?
- threat
- 2.Se2#
- 2.Qe5#
- 1...Bxf4
- 2.Qxf4#
- 1...Re3
- 2.Se2#
- 1...Ke3!
- threat
- 1.bxa3?
- threat
- 2.Qd3#
- 1...Bxf4+
- 2.Rfxf4#
- 2.Rhxf4#
- 1...Be3
- 2.Qg7#
- 1...Rxa3!
- threat
- 1.b3?
- threat
- 2.Qd3#
- 1...Bxf4+
- 2.Rfxf4#
- 2.Rhxf4#
- 1...Be3
- 2.Qg7#
- 1...Rxb3!
- threat
- 1.Sb3+?
- Keys
- 1.Qg1!
- threat
- 2.Rd2#
- 1...Bxf4+
- 2.Rfxf4#
- 1...Ke3
- 2.Sg2#
- 1...Bxb2
- 2.Sd5#
- 1...Re3
- 2.Se2#
- 1...Bd2
- 2.Rxd2#
- 1...Be3
- 2.Qg7#
- threat
- 1.Qg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(b);N_GUARD::QAR1(C),XR(b)
- R(b);N_PINS(D)::R(E)+S(D),DCHECK
- B(a);SBLOCK::QAB(C)
- Tries
- Try
- S(F);CHECK
- Refutation
- R(b);XS(F)
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- R(c);::QAR1(C)
- B(a);SBLOCK::QAB(C)
- Refutation
- R(b);XB(H)
- Try
- R(B);CHECK,N_SPINS(D)
- Refutation
- B(a);P_PINS(D),XR(B)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- R(b);XQ(C)::R1(B)
- R(c);::R1(B)
- B(a);::QAB(C)
- Refutation
- R(b);N_PINS(D)
- Try
- Q(C);XR(b)
- Threat
- DUALS(2)
- Vars
- R(c);::QAR1(C)
- Refutation
- R(c);XQ(C)
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- R(b);N_PINS(D)::R(E)+S(D),DCHECK
- Refutation
- R(b);XQ(C)
- Try
- Q(C);N_SPINS(D)
- Threat
- DUALS(2)
- Vars
- B(a);OGATE,P_PINQ(C),P_SPINB(a),XS(D)::QAR2(C),XB(a)
- R(b);::R(E)+S(D),DCHECK
- Refutation
- K(d);S_FLIGHT
- Try
- P(A);XR(b)
- Threat
- QAR1(C)
- Vars
- B(a);SBLOCK::QAB(C)
- Refutation
- R(c);XP(A)
- Try
- P(A);
- Threat
- QAR1(C)
- Vars
- B(a);SBLOCK::QAB(C)
- Refutation
- R(b);XP(A)
- Try
- Actual
- Q(C);
- Threat
- QAB(C)+R(B),DCHECK
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XS(D)::QAB(C)+R(B),DCHECK,XB(a)
- K(d);N_PINS(D),S_FLIGHT::S(D)
- B(a);N_PINS(D),XP(A)::R(E)+S(D)
- R(b);N_PINS(D),SBLOCK::R(E)+S(D),DCHECK
- B(a);::QAB(C)+R(B),DCHECK,XB(a)
- B(a);SBLOCK::QAB(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).