MESON Chess Problem Database
Problem Display
PID: 204452 (b1rr2n1/4Q1NK/1b3p2/6pP/1p2Bk2/qn2RP2/1N3P2/2B5 w - - 0 1)
Hartong, Jan
Der Tijd, 1925
#2
10 + 11
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Sxd3#
- 1...Rd6
- 2.Qxd6#
- 1...Re8
- 2.Sd3#
- 1...Rf8
- 2.Sd3#
- 2.Qd6#
- 1...Bxe3
- 2.Bxe3#
- 1...Bd4
- 2.Sd3#
- 1...Bxe4+
- 2.Qxe4#
- 1...Bd5
- 2.Sd3#
- 1...Sd4
- 2.Rc3#
- 1...Sc5
- 2.Rd3#
- 1...Rd3
- Tries
- 1.Bb1?
- threat
- 2.Se6#
- 1...Be4+
- 2.Qxe4#
- 1...Bxe3
- 2.Qxe3#
- 1...Bxf3
- 2.Re4#
- 1...Rc6
- 2.Qe4#
- 1...Rd3
- 2.Sxd3#
- 1...Rd6
- 2.Qxd6#
- 1...Bd5
- 2.Sd3#
- 1...Sd4
- 2.Rc3#
- 1...Sc5
- 2.Rd3#
- 1...Rc2!
- threat
- 1.Bc2?
- threat
- 2.Se6#
- 1...Be4+
- 2.Qxe4#
- 1...Bxe3
- 2.Qxe3#
- 1...Bxf3
- 2.Re4#
- 1...Rc6
- 2.Qe4#
- 1...Rd3
- 2.Sxd3#
- 1...Rd6
- 2.Qxd6#
- 1...Bd5
- 2.Sd3#
- 1...Sd4
- 2.Rxa3#
- 2.Rb3#
- 2.Rc3#
- 2.Rd3#
- 1...Sc5
- 2.Rd3#
- 1...Rxc2!
- threat
- 1.Rxb3+?
- 1...Rd2
- 2.Sd3#
- 2.Qd6#
- 1...Be3
- 2.Bxe3#
- 1...Rxc1!
- 1...Rd2
- 1.Qe5+?
- 1...fxe5
- 2.Se6#
- 1...Kxe5!
- 1...fxe5
- 1.Bb1?
- Keys
- 1.Bg6!
- threat
- 2.Se6#
- 1...Bxe3
- 2.Qxe3#
- 1...Bxf3
- 2.Re4#
- 1...Rc6
- 2.Qe4#
- 1...Rd6
- 2.Qxd6#
- 1...Be4
- 2.Qxe4#
- 1...Bd5
- 2.Sd3#
- 1...Sd4
- 2.Rc3#
- 1...Sc5
- 2.Rd3#
- threat
- 1.Bg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(j);N_GUARD::S(B),XR(j)
- R(j);N_GUARD::QAB(H),XR(j)
- R(j);N_GUARD::S(B)
- B(f);OGATE,P_SPINB(f),XR(D)::B(A),XB(f)
- B(f);S_CUTR(j)::S(B)
- B(h);CHECK,OGATE,XB(F)::QAR1(H),XB(h)
- B(h);S_CUTR(j)::S(B)
- S(b);N_GUARD,S_CUTB(f),S_CUTR(j)::B(A)+R(D)
- S(b);N_GUARD,S_CUTB(f),S_CUTR(i)::B(A)+R(D)
- Tries
- Try
- B(F);
- Threat
- S(I)
- Vars
- B(h);CHECK,N_GUARD::QAR1(H),XB(h)
- B(f);OGATE,P_SPINB(f),XR(D)::QAB1(H),XB(f)
- B(h);SBLOCK,XP(E)::B(A)+R(D),DCHECK
- R(i);S_CUTB(h)::QAR1(H)
- R(j);N_GUARD::S(B),XR(j)
- R(j);N_GUARD::QAB(H),XR(j)
- B(h);S_CUTR(j)::S(B)
- S(b);N_GUARD,S_CUTB(f),S_CUTR(j)::B(A)+R(D)
- S(b);N_GUARD,S_CUTB(f),S_CUTR(i)::B(A)+R(D)
- Refutation
- R(i);
- Try
- B(F);
- Threat
- S(I)
- Vars
- B(h);CHECK,N_GUARD::QAR1(H),XB(h)
- B(f);OGATE,P_SPINB(f),XR(D)::QAB1(H),XB(f)
- B(h);SBLOCK,XP(E)::B(A)+R(D),DCHECK
- R(i);S_CUTB(h)::QAR1(H)
- R(j);N_GUARD::S(B),XR(j)
- R(j);N_GUARD::QAB(H),XR(j)
- B(h);S_CUTR(j)::S(B)
- S(b);N_GUARD,S_CUTB(f)::B(A)+R(D)
- Refutation
- R(i);XB(F)
- Try
- R(D);CHECK,XS(b)
- Vars
- B(f);N_GUARD,P_SPINB(f)::B(A),XB(f)
- Refutation
- R(i);XB(A)
- Try
- Q(H);CHECK
- Vars
- P(g);SBLOCK,XQ(H)::S(I)
- Refutation
- K(d);S_FLIGHT,XQ(H)
- Try
- Actual
- B(F);
- Threat
- S(I)
- Vars
- B(f);OGATE,P_SPINB(f),XR(D)::QAB1(H),XB(f)
- B(h);SBLOCK,XP(E)::B(A)+R(D),DCHECK
- R(i);S_CUTB(h)::QAR1(H)
- R(j);N_GUARD::QAB(H),XR(j)
- B(h);N_GUARD,P_PINB(F)::QAR1(H),XB(h)
- B(h);S_CUTR(j)::S(B)
- S(b);N_GUARD,S_CUTB(f),S_CUTR(j)::B(A)+R(D)
- S(b);N_GUARD,S_CUTB(f),S_CUTR(i)::B(A)+R(D)
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).