MESON Chess Problem Database
Problem Display
PID: 39980 (8/K2P2bN/1N3r1Q/RP2kp2/2BRpp2/5b2/6nr/B4nq1 w - - 0 1)
Dutt, Sunder Chunder
4th HM., BCF 025. Ty., 1937-1938
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 1...Rxb6
- 2.Rd5#
- 1...Rc6
- 2.Rd5#
- 2.bxc6#
- 1...Rd6
- 2.Rd5#
- 2.Qxd6#
- 1...Re6
- 2.Rd5#
- 2.Qxe6#
- 1...Rf7
- 2.Rd5#
- 2.Qd6#
- 2.Qe6#
- 1...Rf8
- 2.Rd5#
- 2.Qd6#
- 2.Qe6#
- 1...Bf8
- 2.Qxf6#
- 1...Sfe3
- 2.Rd1#
- 1...Sge3
- 2.Rd2#
- 1...Qh1
- Tries
- 1.Bf7?
- threat
- 2.Sc4#
- 2.Rd5#
- 1...Rxb6
- 2.Rd5#
- 1...e3
- 2.Sc4#
- 1...Rc6
- 2.Rd5#
- 2.bxc6#
- 1...Be2
- 2.Rd5#
- 1...Sd2
- 2.Rd5#
- 1...Sfe3
- 2.Rd1#
- 2.Rd5#
- 1...Sge3
- 2.Rd2#
- 2.Rd5#
- 1...Qxd4!
- threat
- 1.Bg8?
- threat
- 2.Sc4#
- 2.Rd5#
- 1...Rxb6
- 2.Rd5#
- 1...e3
- 2.Sc4#
- 1...Rc6
- 2.Rd5#
- 2.bxc6#
- 1...Be2
- 2.Rd5#
- 1...Sd2
- 2.Rd5#
- 1...Sfe3
- 2.Rd1#
- 2.Rd5#
- 1...Sge3
- 2.Rd2#
- 2.Rd5#
- 1...Qxd4!
- threat
- 1.d8Q?
- threat
- 2.Sd7#
- 2.Qd5#
- 1...Qxd4
- 2.Bxd4#
- 2.Qxd4#
- 2.Qd5#
- 1...Rxb6
- 2.Rd5#
- 2.Qd5#
- 1...Rd6
- 2.Rd5#
- 2.Qhxd6#
- 2.Qdxd6#
- 1...Sfe3
- 2.Sd7#
- 2.Rd1#
- 1...Sge3
- 2.Sd7#
- 2.Rd2#
- 1...e3
- 2.Sd7#
- 2.Rxf4#
- 1...Rf7+!
- threat
- 1.d8S?
- threat
- 2.Sd7#
- 2.Rd5#
- 1...Rf7+
- 2.Sxf7#
- 1...Rxb6
- 2.Sf7#
- 2.Rd5#
- 1...Rd6
- 2.Sf7#
- 2.Rd5#
- 2.Qxd6#
- 1...e3
- 2.Sd7#
- 1...Qxd4!
- threat
- 1.d8R?
- threat
- 2.Sd7#
- 1...Qxd4
- 2.Bxd4#
- 1...Rxb6
- 2.R4d5#
- 2.R8d5#
- 1...Rd6
- 2.Rd5#
- 2.Qxd6#
- 1...Rf7+!
- threat
- 1.Bf7?
- Keys
- 1.Sc8!
- threat
- 2.b6#
- 1...Ra6+
- 2.bxa6#
- 1...e3
- 2.Rxf4#
- 1...Rb6
- 2.Rd5#
- 1...Rc6
- 2.bxc6#
- 1...Rd6
- 2.Qxd6#
- 1...Bf8
- 2.Qxf6#
- 1...Sfe3
- 2.Rd1#
- 1...Sge3
- 2.Rd2#
- threat
- 1.Sc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(j);XS(F)::B(A)+R(C),DCHECK
- B(k);N_GUARD::QAB1(G),XR(j)
- S(a);S_CUTQ(b)::B(A)+R(C)
- S(c);S_CUTQ(b)::B(A)+R(C)
- Tries
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- R(j);XS(F)::B(A)+R(C),DCHECK
- P(f);::S(F)
- B(e);::B(A)+R(C),DCHECK
- S(a);::B(A)+R(C),DCHECK
- Refutation
- Q(b);P_PINS(F),P_SPINQ(b),XR(C)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- R(j);XS(F)::B(A)+R(C),DCHECK
- P(f);::S(F)
- B(e);::B(A)+R(C),DCHECK
- S(a);::B(A)+R(C),DCHECK
- Refutation
- Q(b);P_PINS(F),P_SPINQ(b),XR(C)
- Try
- P(I);
- Threat
- DUALS(2)
- Refutation
- R(j);CHECK
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- R(j);CHECK,N_GUARD::S(I),XR(j)
- P(f);::S(F)
- Refutation
- Q(b);P_PINS(F),P_SPINQ(b),XR(C)
- Try
- P(I);
- Threat
- S(F)
- Vars
- Q(b);OGATE,P_PINS(F),P_SPINQ(b),XR(C)::B(A),XQ(b)
- Refutation
- R(j);CHECK
- Try
- Actual
- S(F);P_SPINR(C)
- Threat
- R(D)+P(E)
- Vars
- R(j);CHECK,OGATE::R(D)+P(E),XR(j)
- P(f);N_PINR(C)::B(A)+R(C),XP(g)
- R(j);N_PINR(C)::B(A)+R(C),DCHECK
- R(j);OGATE::R(D)+P(E),XR(j)
- R(j);OGATE::QAB1(G),XR(j)
- B(k);N_GUARD::QAB1(G),XR(j)
- S(a);N_PINR(C)::B(A)+R(C)
- S(c);N_PINR(C)::B(A)+R(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).