MESON Chess Problem Database
Problem Display
PID: 39554 (7B/7K/2pp4/P1krn2R/4Q3/1Rp1Pp2/2b2N2/2N2B2 w - - 0 1)
Dutt, Sunder Chunder
Recomm., BCF 022. Ty., 1936-1937
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Rxc3#
- 1...Rd2
- 2.Rxc3#
- 1...Rd4
- 2.exd4#
- 1...Bd1
- 2.Qb4#
- 1...Bxb3
- 2.Sxb3#
- 1...Bxe4+
- 2.Sxe4#
- 1...Sd3
- 2.Qd4#
- 1...Sc4
- 2.Bd4#
- 1...Sg4
- 2.Bd4#
- 2.Rxc3#
- 1...Sg6
- 2.Bd4#
- 2.Rxc3#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Sd7
- 2.Bd4#
- 2.Rxc3#
- 1...Sf7
- 2.Bd4#
- 2.Rxc3#
- 1...Rd1
- Tries
- 1.Kg7?
- threat
- 2.Qb4#
- 1...Bxb3
- 2.Sxb3#
- 1...Bxe4
- 2.Sxe4#
- 1...Rd1
- 2.Rxc3#
- 2.Qc4#
- 1...Rd2
- 2.Rxc3#
- 2.Qc4#
- 1...Rd4
- 2.Qxd4#
- 2.exd4#
- 1...Sd3
- 2.Qd4#
- 1...Sc4
- 2.Qxc4#
- 2.Qd4#
- 1...Rd3!
- threat
- 1.Kg8?
- threat
- 2.Qb4#
- 1...Bxb3
- 2.Sxb3#
- 1...Bxe4
- 2.Sxe4#
- 1...Rd1
- 2.Rxc3#
- 2.Qc4#
- 1...Rd2
- 2.Rxc3#
- 2.Qc4#
- 1...Rd4
- 2.Qxd4#
- 2.exd4#
- 1...Sd3
- 2.Qd4#
- 1...Sc4
- 2.Bd4#
- 2.Qxc4#
- 2.Qd4#
- 1...Rd3!
- threat
- 1.Rxe5?
- threat
- 2.Rxc3#
- 1...Bxe4+
- 2.Sxe4#
- 1...Bxb3
- 2.Sxb3#
- 2.Qd4#
- 1...Bd3
- 2.Scxd3#
- 2.Sfxd3#
- 1...dxe5!
- threat
- 1.Rf5?
- threat
- 2.Qb4#
- 1...Bxb3
- 2.Sxb3#
- 1...Bxe4
- 2.Sxe4#
- 1...Rd1
- 2.Rxc3#
- 2.Qc4#
- 1...Rd2
- 2.Rxc3#
- 2.Qc4#
- 1...Rd4
- 2.Qxd4#
- 2.exd4#
- 1...Sd3
- 2.Qd4#
- 1...Sc4
- 2.Bd4#
- 2.Qxc4#
- 2.Qd4#
- 1...Rd3!
- threat
- 1.Kg7?
- Keys
- 1.Rb6!
- 1...Bxe4+
- 2.Sxe4#
- 1...Rd3
- 2.Qxc6#
- 1...Rd1
- 2.Rxc6#
- 1...Rd2
- 2.Rxc6#
- 1...Rd4
- 2.exd4#
- 1...Bb1
- 2.Sb3#
- 1...Bd1
- 2.Qb4#
- 1...Bb3
- 2.Sxb3#
- 2.Qb4#
- 1...Bd3
- 2.Sb3#
- 1...Ba4
- 2.Qb4#
- 1...Sd3
- 2.Qd4#
- 1...Sc4
- 2.Bd4#
- 1...Sg4
- 2.Bd4#
- 1...Sg6
- 2.Bd4#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Sd7
- 2.Bd4#
- 1...Sf7
- 2.Bd4#
- 1...Bxe4+
- 1.Rb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- R(e);P_SPINS(f)::R(D),XP(b)
- R(e);OGATE,P_SPINS(f)::P(E),XR(e)
- B(a);N_PINQ(F)::QAB1(F)
- B(a);N_PINQ(F),XR(D)::S(A),XB(a)
- B(a);CHECK,XQ(F)::S(C),XB(a)
- S(f);N_PINQ(F),P_SPINR(e)::QAB1(F)
- S(f);OGATE,P_SPINR(e)::B(J)
- Tries
- Try
- K(I);N_SPINQ(F),P-FLIGHT
- Threat
- QAB1(F)
- Vars
- B(a);XR(D)::S(A),XB(a)
- B(a);XQ(F)::S(C),XB(a)
- S(f);P_SPINR(e)::QAB1(F)
- Refutation
- R(e);P_SPINS(f)
- Try
- K(I);N_SPINQ(F),S_FLIGHT
- Threat
- QAB1(F)
- Vars
- B(a);XR(D)::S(A),XB(a)
- B(a);XQ(F)::S(C),XB(a)
- S(f);P_SPINR(e)::QAB1(F)
- Refutation
- R(e);P_SPINS(f)
- Try
- R(H);P_PINR(e),XS(f)
- Threat
- R(D),XP(b)
- Vars
- B(a);CHECK,XQ(F)::S(C),XB(a)
- Refutation
- P(h);N_SPINR(e),XR(H)
- Try
- R(H);N_SPINQ(F)
- Threat
- QAB1(F)
- Vars
- B(a);XR(D)::S(A),XB(a)
- B(a);P_PINR(H),XQ(F)::S(C),XB(a)
- S(f);P_SPINR(e)::QAB1(F)
- Refutation
- R(e);P_SPINS(f)
- Try
- Actual
- R(D);
- Vars
- B(a);CHECK,XQ(F)::S(C),XB(a)
- R(e);N_PINQ(F),P_SPINS(f)::QAR1(F),XP(g)
- R(e);P_SPINS(f)::R1(D),XP(g)
- R(e);OGATE,P_SPINS(f)::P(E),XR(e)
- B(a);N_GUARD::S(A)
- B(a);N_PINQ(F)::QAB1(F)
- S(f);N_PINQ(F),P_SPINR(e)::QAB1(F)
- S(f);OGATE,P_SPINR(e)::B(J)
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).