MESON Chess Problem Database
Problem Display
PID: 63591 (2Q2N2/B7/1r1P1PP1/1r1kP2p/1p5R/1p1N1PK1/1nn1P3/2R5 w - - 0 1)
Narayanan, Chithathuz Gopatan Sathya
2nd Prize, British Chess Magazine, 1976
#2
13 + 8
| 3771 | FIDE Album (1974-1976) | 1980 |
| 133 | The Problemist Supplement | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Qxc5#
- 1...Ra6
- 2.e4#
- 1...Rc6
- 2.Qe6#
- 1...Rxd6
- 2.e4#
- 1...Rb7
- 2.e4#
- 1...Rb8
- 2.e4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sa1
- 2.Qe6#
- 1...Se1
- 2.Qe6#
- 1...Sa3
- 2.Qe6#
- 1...Se3
- 2.Qe6#
- 1...Sd4
- 2.e4#
- 1...Rc5
- Tries
- 1.Sxb4+?
- 1...Kxe5
- 2.Qe6#
- 1...Sxb4
- 2.Qe6#
- 1...Rxb4!
- 1...Kxe5
- 1.Bxb6?
- threat
- 2.Qb7#
- 2.Qa8#
- 2.e4#
- 1...Rxb6
- 2.Qc5#
- 1...Ra5
- 2.Qb7#
- 2.e4#
- 1...Rc5
- 2.Qxc5#
- 1...Se3
- 2.Rd4#
- 2.Qe6#
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 1...Sd4
- 2.Rxd4#
- 2.e4#
- 1...Sxd3!
- threat
- 1.Rxc2?
- threat
- 2.Qe6#
- 1...Rxd6
- 2.Rd4#
- 2.e4#
- 1...Rc5
- 2.Rxc5#
- 2.Qxc5#
- 1...Sc4
- 2.Qxc4#
- 1...bxc2!
- threat
- 1.Rd4+?
- 1...Sxd4
- 2.e4#
- 1...Kxd4!
- 1...Sxd4
- 1.Re4?
- threat
- 2.Sf4#
- 1...Sxd3
- 2.Qc4#
- 1...h4+!
- threat
- 1.Qb7+?
- 1...Rc6
- 2.Qf7#
- 1...Rxb7!
- 1...Rc6
- 1.Qc3?
- threat
- 2.Sf4#
- 2.e4#
- 1...Sxd3
- 2.e4#
- 1...Rc5
- 2.Qxc5#
- 1...Sc4
- 2.Qxc4#
- 1...Se3
- 2.Sf4#
- 2.Rd4#
- 2.Qd4#
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 2.e4#
- 1...bxc3!
- threat
- 1.g7?
- threat
- 2.g8Q#
- 2.g8B#
- 1...Rxd6
- 2.e4#
- 1...Ra5
- 2.g8Q#
- 2.g8B#
- 1...Rc5
- 2.Qxc5#
- 2.g8Q#
- 2.g8B#
- 1...Ra6
- 2.e4#
- 2.g8Q#
- 2.g8B#
- 1...Rc6
- 2.Qe6#
- 2.g8Q#
- 2.g8B#
- 1...Rb7
- 2.e4#
- 1...Rb8
- 2.e4#
- 2.g8Q#
- 2.g8B#
- 1...Sd1
- 2.Qc4#
- 2.g8Q#
- 2.g8B#
- 1...Sa4
- 2.Qc4#
- 2.g8Q#
- 2.g8B#
- 1...Sc4
- 2.Qxc4#
- 2.g8Q#
- 2.g8B#
- 1...Sa1
- 2.Qe6#
- 2.g8Q#
- 2.g8B#
- 1...Se1
- 2.Qe6#
- 2.g8Q#
- 2.g8B#
- 1...Sa3
- 2.Qe6#
- 2.g8Q#
- 2.g8B#
- 1...Se3
- 2.Qe6#
- 2.g8Q#
- 2.g8B#
- 1...Sd4
- 2.e4#
- 1...Sxd3!
- threat
- 1.Sxb4+?
- Keys
- 1.Sd7!
- 1...Ke6
- 2.Sxb6#
- 1...Rxd6
- 2.Sf4#
- 1...Sxd3
- 2.Qc4#
- 1...Ra5
- 2.Sxb6#
- 1...Rc5
- 2.Sxb6#
- 1...Ra6
- 2.Sf4#
- 1...Rc6
- 2.Qg8#
- 1...Rb7
- 2.Sf4#
- 1...Rb8
- 2.Sf4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sa1
- 2.Qg8#
- 1...Se1
- 2.Qg8#
- 1...Sa3
- 2.Qg8#
- 1...Se3
- 2.Qg8#
- 1...Sd4
- 2.Sf4#
- 1...Ke6
- 1.Sd7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 11
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD::QAR1(L),XR(e)
- R(h);::P(B)
- R(h);SBLOCK::QAB1(L)
- R(h);XP(H)::P(B)
- S(a);N_GUARD::QAB1(L)
- S(a);N_GUARD::QAB1(L),XS(a)
- S(b);::QAB1(L)
- S(b);SBLOCK::P(B)
- Tries
- Try
- S(C);CHECK,XP(d)
- Vars
- K(f);P-FLIGHT,XP(G)::QAR1(L)
- S(b);XS(C)::QAB1(L)
- Refutation
- R(e);XS(C)
- Try
- B(K);XR(h)
- Threat
- DUALS(3)
- Vars
- R(e);N_GUARD,XB(K)::QAR1(L)
- R(e);N_GUARD::QAR1(L),XR(e)
- Refutation
- S(a);XS(C)
- Try
- R(A);XS(b)
- Threat
- QAB1(L)
- Vars
- S(a);N_GUARD::QAB1(L),XS(a)
- Refutation
- P(c);XR(A)
- Try
- R(F);CHECK
- Vars
- S(b);SBLOCK,XR(F)::P(B)
- Refutation
- K(f);P-FLIGHT,P_SPINR(h),XR(F)
- Try
- R(F);
- Threat
- S(C)
- Vars
- S(a);N_GUARD,XS(C)::QAB1(L)
- Refutation
- P(g);CHECK
- Try
- Q(L);CHECK
- Vars
- R(h);P_SPINR(h),SBLOCK::QAB(L)
- Refutation
- R(h);XQ(L)
- Try
- Q(L);
- Threat
- DUALS(2)
- Vars
- S(a);XS(C)::P(B)
- R(e);N_GUARD::QAR1(L),XR(e)
- S(a);N_GUARD::QAB1(L),XS(a)
- Refutation
- P(d);XQ(L)
- Try
- P(J);
- Threat
- P=Q
- Vars
- R(h);XP(H)::P(B)
- R(e);::P=Q
- R(h);::P(B)
- S(b);SBLOCK::P(B)
- Refutation
- S(a);XS(C)
- Try
- Actual
- S(M);
- Vars
- K(f);S_FLIGHT::QAB(L)+S(M),XR(h)
- R(h);XP(H)::S(C)
- S(a);N_GUARD,XS(C)::QAB1(L)
- R(e);N_GUARD::S(M),XR(h)
- R(h);::S(C)
- R(h);SBLOCK::QAB(L)
- S(a);N_GUARD::QAB1(L)
- S(a);N_GUARD::QAB1(L),XS(a)
- S(b);::QAB(L)
- S(b);SBLOCK::S(C)
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