MESON Chess Problem Database
Problem Display
PID: 152495 (4B2r/4Rn2/2p5/2r1p3/2N1kpP1/1Q3p1p/1b1R1P1K/Bb6 w - - 0 1)
Dutt, Sunder Chunder
1st Prize, Chess, 1956
#2
9 + 11
| 81 | Chess | 1957 |
| 56 | The Problemist | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Ba2
- 2.Qc2#
- 2.Qd3#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Bxa1
- 2.Qxb1#
- 1...Bc1
- 2.Rd4#
- 2.Qxb1#
- 1...Ba3
- 2.Rd4#
- 2.Qxb1#
- 1...Bc3
- 2.Qxb1#
- 1...Bd4
- 2.Rxd4#
- 1...Sg5
- 2.Sd6#
- 2.Bg6#
- 1...Sd6
- 2.Sxd6#
- 1...Sh6
- 2.Sd6#
- 1...Sd8
- 2.Sd6#
- 2.Bg6#
- 1...Ba2
- Tries
- 1.Bxb2?
- threat
- 2.Rd4#
- 1...Rxc4
- 2.Qxc4#
- 1...Bd3
- 2.Qxd3#
- 1...Rd5!
- threat
- 1.Bxc6+?
- 1...Rd5
- 2.Bxd5#
- 1...Rxc6!
- 1...Rd5
- 1.Bd7?
- threat
- 2.Bf5#
- 1...Bd3
- 2.Qxd3#
- 1...Bd4
- 2.Rxd4#
- 1...Sd6
- 2.Sxd6#
- 1...Sh6
- 2.Sd6#
- 1...Rh5!
- threat
- 1.Bxf7?
- threat
- 2.Sd6#
- 2.Bg6#
- 1...Rxc4
- 2.Bg6#
- 1...Bd3
- 2.Qxd3#
- 1...Rd5
- 2.Bg6#
- 1...Rh5
- 2.Sd6#
- 1...Rd8
- 2.Bg6#
- 1...Rf8
- 2.Sd6#
- 1...Rg8
- 2.Sd6#
- 1...Bd4
- 2.Sd6#
- 2.Rxd4#
- 2.Qxb1#
- 1...Rh6!
- threat
- 1.Rd4+?
- 1...Bxd4
- 2.Sd2#
- 1...Kxd4!
- 1...Bxd4
- 1.Rxe5+?
- 1...Bxe5
- 2.Qxb1#
- 1...Sxe5
- 2.Sd6#
- 1...Rxe5!
- 1...Bxe5
- 1.Qd1?
- threat
- 2.Qxb1#
- 2.Qe1#
- 1...Rxc4
- 2.Qe1#
- 1...Bd4
- 2.Rxd4#
- 1...Rd5
- 2.Qe1#
- 1...Ba2
- 2.Qc2#
- 2.Qe1#
- 1...Bc2
- 2.Qxc2#
- 2.Qe1#
- 1...Bc1
- 2.Rd4#
- 2.Qe1#
- 1...Bd3!
- threat
- 1.Qa4?
- threat
- 2.Sd6#
- 1...Rxc4
- 2.Bxc6#
- 1...Bd4
- 2.Rxd4#
- 1...Sd6
- 2.Sxd6#
- 1...Bd3!
- threat
- 1.Qb4?
- threat
- 2.Sd6#
- 1...Rxc4
- 2.Bxc6#
- 1...Bd4
- 2.Rxd4#
- 1...Sd6
- 2.Sxd6#
- 1...Bd3!
- threat
- 1.Bxb2?
- Keys
- 1.Sxe5!
- threat
- 2.Qxf3#
- 1...Rxe5
- 2.Bxc6#
- 1...Bxe5
- 2.Rd4#
- 1...Sxe5
- 2.Bg6#
- 1...Bd3
- 2.Qxd3#
- 1...Rc3
- 2.Sxf7#
- 1...Bc3
- 2.Qxb1#
- 1...Sg5
- 2.Bg6#
- threat
- 1.Sxe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 5
- Sets
- B(a);N_GUARD::QAB(E),XB(a)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(b);OGATE,XB(A)::QAB(E),XB(a)
- B(b);OGATE::QAB(E),XB(a)
- B(b);N_GUARD::R1(B),XB(b)
- S(j);N_GUARD::S(F),XS(j)
- S(j);N_GUARD::S(F)
- Tries
- Try
- B(A);XB(b)
- Threat
- R1(B)
- Vars
- R(g);OGATE,XS(F)::QAR2(E),XR(g)
- B(a);N_GUARD::QAB1(E),XB(a)
- Refutation
- R(g);
- Try
- B(I);CHECK,XP(i)
- Vars
- R(g);N_GUARD,P_SPINR(g)::B(I),XR(g)
- Refutation
- R(g);XB(I)
- Try
- B(I);
- Threat
- B(I)
- Vars
- B(a);N_GUARD::QAB1(E),XB(a)
- B(b);N_GUARD::R1(B),XB(b)
- S(j);N_GUARD::S(F),XS(j)
- S(j);N_GUARD::S(F)
- Refutation
- R(k);
- Try
- B(I);XS(j)
- Threat
- DUALS(2)
- Vars
- R(g);XS(F)::B(I)
- B(a);N_GUARD::QAB1(E),XB(a)
- R(g);::B(I)
- R(k);::S(F)
- R(k);::B(I)
- Refutation
- R(k);
- Try
- R(B);CHECK
- Vars
- B(b);XR(B)::S(F)
- Refutation
- K(e);N_SPINP(h),P-FLIGHT,P_SPINB(b),XR(B)
- Try
- R(H);CHECK,XP(h)
- Vars
- B(b);OGATE,XR(H)::QAB(E),XB(a)
- S(j);SBLOCK,XR(H)::S(F)
- Refutation
- R(g);XR(H)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(g);XS(F)::QAR(E)
- B(b);N_GUARD::R1(B),XB(b)
- R(g);::QAR(E)
- Refutation
- B(a);
- Try
- Q(E);
- Threat
- QAR(E)+S(F),DCHECK
- Vars
- R(g);N_GUARD,P_SPINR(g),XS(F)::B(I),XP(i)
- B(b);N_GUARD::R1(B),XB(b)
- S(j);::QAR(E)+S(F),DCHECK,XS(j)
- Refutation
- B(a);
- Try
- Q(E);
- Threat
- QAR(E)+S(F),DCHECK
- Vars
- R(g);N_GUARD,P_SPINR(g),XS(F)::B(I),XP(i)
- B(b);N_GUARD::R1(B),XB(b)
- S(j);::QAR(E)+S(F),DCHECK,XS(j)
- Refutation
- B(a);
- Try
- Actual
- S(F);XP(h)
- Threat
- QAB1(E),XP(c)
- Vars
- R(g);N_GUARD,P_SPINR(g),XS(F)::B(I),XP(i)
- B(b);N_GUARD,P_SPINB(b),XS(F)::R1(B)
- S(j);OGATE,P_SPINS(j),XS(F)::B(I)
- B(a);N_GUARD::QAB1(E),XB(a)
- R(g);N_GUARD,S_CUTB(b)::R(H)+S(F),XS(j)
- B(b);OGATE::QAB(E),XB(a)
- S(j);OGATE::B(I)
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