MESON Chess Problem Database
Problem Display
PID: 268530 (1Nn1Qbb1/r5p1/2R2p2/3kN3/R2p4/B1p5/3rp3/1B2n2K w - - 0 1)
Dutt, Sunder Chunder
The Problemist, 1956
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Re7
- 2.Ra5#
- 1...Rf7
- 2.Qe6#
- 1...Be6
- 2.Qxe6#
- 1...Bh7
- 2.Qe6#
- 1...Sd6
- 2.Rc5#
- 1...Re7
- Tries
- 1.Sg6?
- threat
- 2.Sf4#
- 2.Be4#
- 2.Qe4#
- 1...Rc2
- 2.Sf4#
- 1...Rd3
- 2.Sf4#
- 2.Ba2#
- 1...Re7
- 2.Ra5#
- 1...Bd6
- 2.Be4#
- 2.Qe4#
- 1...Be7
- 2.Qxg8#
- 1...Be6
- 2.Qxe6#
- 1...Sc2
- 2.Sf4#
- 2.Ba2#
- 1...Sg2
- 2.Be4#
- 2.Qe4#
- 1...Sd6
- 2.Sf4#
- 2.Rc5#
- 1...Se7
- 2.Rd6#
- 1...c2
- 2.Sf4#
- 2.Ba2#
- 1...d3
- 2.Sf4#
- 2.Qe4#
- 1...f5
- 2.Sf4#
- 2.Qe5#
- 1...Sd3!
- threat
- 1.Sf7?
- threat
- 2.Be4#
- 2.Qe4#
- 2.Qe6#
- 1...Bxf7
- 2.Be4#
- 2.Qe4#
- 1...Rc2
- 2.Qe6#
- 1...Rd3
- 2.Ba2#
- 2.Qe6#
- 1...Re7
- 2.Ra5#
- 1...Bd6
- 2.Be4#
- 2.Qe4#
- 1...Bh7
- 2.Qe6#
- 1...Sc2
- 2.Ba2#
- 2.Qe6#
- 1...Sd3
- 2.Qe6#
- 1...Sd6
- 2.Rc5#
- 1...Se7
- 2.Rd6#
- 1...c2
- 2.Ba2#
- 2.Qe6#
- 1...d3
- 2.Qe4#
- 2.Qe6#
- 1...f5
- 2.Qe5#
- 2.Qe6#
- 1...Be7!
- threat
- 1.Ra5+?
- 1...Bc5
- 2.Raxc5#
- 1...Rxa5!
- 1...Bc5
- 1.Qd7+?
- 1...Kxe5
- 2.Qf5#
- 1...Bd6
- 2.Rc5#
- 1...Sd6
- 2.Rc5#
- 1...Rxd7!
- 1...Kxe5
- 1.Sg6?
- Keys
- 1.Sf3!
- threat
- 2.Be4#
- 2.Qe4#
- 1...Rc2
- 2.Rxd4#
- 1...Rd3
- 2.Ba2#
- 1...Re7
- 2.Ra5#
- 1...Be7
- 2.Qxg8#
- 1...Be6
- 2.Qxe6#
- 1...Bh7
- 2.Qe6#
- 1...Sc2
- 2.Ba2#
- 1...Sd3
- 2.Rxd4#
- 1...Sd6
- 2.Rc5#
- 1...Se7
- 2.Rd6#
- 1...c2
- 2.Ba2#
- 1...d3
- 2.Rd4#
- 2.Qe4#
- 1...f5
- 2.Qe5#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- R(h);N_GUARD,S_CUTB(k)::R(D)
- R(h);S_CUTB(l)::QAB1(H)
- B(l);N_GUARD::QAB1(H),XB(l)
- B(l);N_GUARD::QAB1(H)
- S(j);SBLOCK,S_CUTB(k)::R1(F)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(b);::S(E)
- R(h);N_GUARD,S_CUTB(k)::R(D)
- B(k);OGATE::QAB(H),XB(l)
- B(l);N_GUARD::QAB1(H),XB(l)
- S(j);N_GUARD,S_CUTB(k)::R1(F)
- Refutation
- S(a);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(b);::QAB1(H)
- R(h);N_GUARD,S_CUTB(k)::R(D)
- B(l);::QAB1(H)
- S(a);::QAB1(H)
- S(j);S_CUTB(k)::R1(F)
- S(j);N_GUARD,S_CUTB(k)::R1(F)
- Refutation
- B(k);
- Try
- R(D);CHECK
- Vars
- B(k);N_GUARD,P_SPINB(k)::R1(D),XB(k)
- Refutation
- R(h);XR(D)
- Try
- Q(H);CHECK
- Vars
- K(f);OGATEB,P-FLIGHT,XS(E)::QAR1(H)
- B(k);P_SPINB(k)::R1(F)
- S(j);P_SPINS(j)::R1(F)
- Refutation
- R(h);XQ(H)
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD::R1(D),XP(e)
- R(b);N_GUARD::B(A)
- R(h);N_GUARD,S_CUTB(k)::R(D)
- B(k);OGATE::QAB(H),XB(l)
- B(l);N_GUARD::QAB1(H),XB(l)
- B(l);N_GUARD::QAB1(H)
- S(a);S_CUTR(b)::B(A)
- S(a);S_CUTR(b)::R1(D),XP(e)
- S(j);SBLOCK,S_CUTB(k)::R1(F)
- S(j);N_GUARD,S_CUTB(k)::R1(F)
- P(d);S_CUTR(b)::B(A)
- P(g);N_GUARD::QAR1(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).