MESON Chess Problem Database
Problem Display
PID: 267211 (4Nn2/8/2pR4/2N1k3/1P6/K2BP1P1/3p2rn/3b3Q w - - 0 1)
Dutt, Sunder Chunder
The Problemist, 1955
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qe4#
- 1...Re2
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Rxg3
- 2.Qe4#
- 1...Bc2
- 2.Qa1#
- 1...Be2
- 2.Qa1#
- 1...Bb3
- 2.Qa1#
- 1...Bf3
- 2.Qa1#
- 1...Ba4
- 2.Qa1#
- 1...Bg4
- 2.Qa1#
- 1...Bh5
- 2.Qa1#
- 1...Sf1
- 2.Qh8#
- 1...Sf3
- 2.Qh8#
- 1...Sg4
- 2.Qh5#
- 1...Se6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Rg1
- Tries
- 1.Ka2?
- 1...Rxg3
- 2.Qe4#
- 1...Rg1
- 2.Qe4#
- 1...Re2
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Bc2
- 2.Qa1#
- 1...Be2
- 2.Qa1#
- 1...Bf3
- 2.Qa1#
- 1...Ba4
- 2.Qa1#
- 1...Bg4
- 2.Qa1#
- 1...Bh5
- 2.Qa1#
- 1...Sf1
- 2.Qh8#
- 1...Sf3
- 2.Qh8#
- 1...Sg4
- 2.Qh5#
- 1...Se6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Bb3+!
- 1...Rxg3
- 1.Bc2?
- 1...Rxg3
- 2.Qe4#
- 1...Sg6
- 2.Sd7#
- 1...Rg1
- 2.Qe4#
- 1...Re2
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Be2
- 2.Qa1#
- 1...Bf3
- 2.Qa1#
- 1...Bg4
- 2.Qa1#
- 1...Bh5
- 2.Qa1#
- 1...Sf1
- 2.Qh8#
- 1...Sf3
- 2.Qh8#
- 1...Sg4
- 2.Qh5#
- 1...Se6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Bxc2!
- 1...Rxg3
- 1.Bg6?
- threat
- 2.Sd3#
- 1...Bc2
- 2.Qa1#
- 1...Be2
- 2.Qa1#
- 1...Sxg6!
- threat
- 1.Re6+?
- 1...Kd5
- 2.Sf6#
- 2.Sc7#
- 1...Sxe6!
- 1...Kd5
- 1.Rf6?
- threat
- 2.Rf5#
- 1...Kd5
- 2.Rf5#
- 1...Rf2
- 2.Qe4#
- 1...Bg4!
- threat
- 1.Qxd1?
- threat
- 2.Qh5#
- 2.Qa1#
- 1...Rxg3
- 2.Qa1#
- 1...Rg1
- 2.Qh5#
- 1...Re2
- 2.Qa1#
- 1...Rf2
- 2.Qa1#
- 1...Sg4
- 2.Qa1#
- 1...Se6
- 2.Sd7#
- 1...Sh7
- 2.Sd7#
- 2.Qa1#
- 1...Sf3!
- threat
- 1.g4?
- 1...Bxg4
- 2.Qa1#
- 1...Sxg4
- 2.Qh5#
- 1...Sg6
- 2.Sd7#
- 1...Rg1
- 2.Qe4#
- 1...Re2
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Rg3
- 2.Qe4#
- 1...Bc2
- 2.Qa1#
- 1...Be2
- 2.Qa1#
- 1...Bb3
- 2.Qa1#
- 1...Bf3
- 2.Qa1#
- 1...Ba4
- 2.Qa1#
- 1...Sf1
- 2.Qh5#
- 2.Qh8#
- 1...Sf3
- 2.Qh8#
- 1...Se6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Rxg4!
- 1...Bxg4
- 1.b5?
- 1...Rxg3
- 2.Qe4#
- 1...Sg6
- 2.Sd7#
- 1...Rg1
- 2.Qe4#
- 1...Re2
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Bc2
- 2.Qa1#
- 1...Be2
- 2.Qa1#
- 1...Bb3
- 2.Qa1#
- 1...Bf3
- 2.Qa1#
- 1...Ba4
- 2.Qa1#
- 1...Bg4
- 2.Qa1#
- 1...Bh5
- 2.Qa1#
- 1...Sf1
- 2.Qh8#
- 1...Sf3
- 2.Qh8#
- 1...Sg4
- 2.Qh5#
- 1...Se6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...cxb5!
- 1...Rxg3
- 1.Ka2?
- Keys
- 1.Be4!
- 1...Rxg3
- 2.Sd3#
- 1...Sg6
- 2.Re6#
- 1...Rg1
- 2.Sd3#
- 1...Re2
- 2.Sd3#
- 1...Rf2
- 2.Sd3#
- 1...Bc2
- 2.Qa1#
- 1...Be2
- 2.Qa1#
- 1...Bb3
- 2.Qa1#
- 1...Bf3
- 2.Qa1#
- 1...Ba4
- 2.Qa1#
- 1...Bg4
- 2.Qa1#
- 1...Bh5
- 2.Qa1#
- 1...Sf1
- 2.Qh8#
- 1...Sf3
- 2.Qh8#
- 1...Sg4
- 2.Qh5#
- 1...Se6
- 2.Rxe6#
- 1...Sd7
- 2.Re6#
- 1...Sh7
- 2.Re6#
- 1...Rxg3
- 1.Be4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(c);OGATE::QAR1(A)
- R(c);OGATE,XP(E)::QAR1(A)
- B(a);OGATE::QAB(A)
- S(d);OGATE::QAB(A)
- S(d);OGATE::QAR(A)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- R(c);OGATE,XP(E)::QAR1(A)
- R(c);OGATE::QAR1(A)
- B(a);OGATE::QAB(A)
- S(d);OGATE::QAB(A)
- S(d);OGATE::QAR(A)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- Refutation
- B(a);CHECK
- Try
- B(C);
- Vars
- R(c);OGATE,P_PINP(D),XP(E)::QAR1(A)
- S(g);N_GUARD::S(G)
- R(c);OGATE::QAR1(A)
- B(a);OGATE::QAB(A)
- S(d);OGATE::QAB(A)
- S(d);OGATE::QAR(A)
- S(g);N_GUARD::S(G),XS(g)
- Refutation
- B(a);XB(C)
- Try
- B(C);
- Threat
- S(G)
- Vars
- B(a);OGATE::QAB(A)
- Refutation
- S(g);XB(C)
- Try
- R(H);CHECK
- Refutation
- S(g);XR(H)
- Try
- R(H);
- Threat
- R1(H)
- Vars
- K(e);P-FLIGHT,P_SPINR(c)::R(H)
- R(c);OGATE::QAR1(A)
- Refutation
- B(a);
- Try
- Q(A);XB(a)
- Threat
- DUALS(2)
- Vars
- R(c);XP(E)::QAB(A)
- R(c);::QAR(A)
- R(c);::QAB(A)
- S(d);::QAB(A)
- S(g);N_GUARD::S(G)
- Refutation
- S(d);
- Try
- P(E);
- Vars
- B(a);OGATE,XP(E)::QAB(A)
- S(d);OGATE,XP(E)::QAR(A)
- S(g);N_GUARD::S(G)
- R(c);OGATE::QAR1(A)
- B(a);OGATE::QAB(A)
- S(d);OGATE::QAB(A)
- S(g);N_GUARD::S(G),XS(g)
- Refutation
- R(c);XP(E)
- Try
- P(F);
- Vars
- R(c);OGATE,XP(E)::QAR1(A)
- S(g);N_GUARD::S(G)
- R(c);OGATE::QAR1(A)
- B(a);OGATE::QAB(A)
- S(d);OGATE::QAB(A)
- S(d);OGATE::QAR(A)
- S(g);N_GUARD::S(G),XS(g)
- Refutation
- P(f);XP(F)
- Try
- Actual
- B(C);
- Vars
- R(c);P_PINP(D),XP(E)::S(G)
- S(g);N_GUARD::R1(H)
- R(c);::S(G)
- B(a);OGATE::QAB(A)
- S(d);OGATE::QAB(A)
- S(d);OGATE::QAR(A)
- S(g);N_GUARD::R1(H),XS(g)
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).