MESON Chess Problem Database
Problem Display
PID: 165286 (2B1qr1b/1N2p1n1/1R6/p2kNp1p/p4pr1/1P6/3PRnP1/BQ3K2 w - - 0 1)
Shire, David J
British Chess Magazine, 2017
#2
11 + 13
SOLUTION
- SOUND
- Sets
- 1...Qb5
- 2.Rxb5#
- 1...Qg6
- 2.Rb5#
- 1...Qf7
- 2.Rb5#
- 1...Qd8
- 2.Rb5#
- 1...Sd1
- 2.Qd3#
- 1...Sh1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sh3
- 2.Qd3#
- 1...Se4
- 2.Qd3#
- 1...Se6
- 2.Bxe6#
- 1...axb3
- 2.Qxb3#
- 1...e6
- 2.Rd6#
- 1...Qb5
- Tries
- 1.Sd3?
- threat
- 2.Re5#
- 1...Sxd3
- 2.Qxd3#
- 1...axb3
- 2.Qxb3#
- 1...Se6
- 2.Bxe6#
- 1...e5
- 2.Rd6#
- 1...Se4!
- threat
- 1.Sf3?
- threat
- 2.Re5#
- 1...axb3
- 2.Qxb3#
- 1...Sd3
- 2.Qxd3#
- 1...Se4
- 2.Qd3#
- 1...Se6
- 2.Bxe6#
- 1...e5
- 2.Rd6#
- 1...Qb5!
- threat
- 1.Sc4?
- threat
- 2.Re5#
- 1...Sd3
- 2.Qxd3#
- 1...Se4
- 2.Qd3#
- 1...Se6
- 2.Bxe6#
- 1...e5
- 2.Rd6#
- 1...axb3!
- threat
- 1.Sxg4?
- threat
- 2.Re5#
- 1...Sxg4
- 2.Qd3#
- 1...axb3
- 2.Qxb3#
- 1...Sd3
- 2.Qxd3#
- 1...Se4
- 2.Qd3#
- 1...Se6
- 2.Bxe6#
- 1...e5
- 2.Rd6#
- 1...Qb5!
- threat
- 1.Sc6?
- threat
- 2.Re5#
- 1...axb3
- 2.Qxb3#
- 1...Sd3
- 2.Qxd3#
- 1...Se4
- 2.Qd3#
- 1...Se6
- 2.Bxe6#
- 1...e5!
- threat
- 1.Sd7?
- threat
- 2.Re5#
- 1...axb3
- 2.Qxb3#
- 1...Sd3
- 2.Qxd3#
- 1...Se4
- 2.Qd3#
- 1...e5
- 2.Rd6#
- 1...Se6!
- threat
- 1.Sf7?
- threat
- 2.Re5#
- 1...axb3
- 2.Qxb3#
- 1...Sd3
- 2.Qxd3#
- 1...Se4
- 2.Qd3#
- 1...Se6
- 2.Bxe6#
- 1...e5
- 2.Rd6#
- 1...Qb5!
- threat
- 1.Qc2?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...Qb5
- 2.Rxb5#
- 1...Qc6
- 2.Qxc6#
- 1...Sd3
- 2.Qxd3#
- 2.Qc4#
- 1...Se4
- 2.Qd3#
- 2.Qc4#
- 1...Se6
- 2.Bxe6#
- 2.Qc4#
- 1...f3
- 2.Qc5#
- 1...Qxc8!
- threat
- 1.Qc1?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...Qb5
- 2.Rxb5#
- 1...Qc6
- 2.Qxc6#
- 1...Sd3
- 2.Qc4#
- 1...Se4
- 2.Qc4#
- 1...Se6
- 2.Bxe6#
- 2.Qc4#
- 1...f3
- 2.Qc5#
- 1...Qxc8!
- threat
- 1.Qb2?
- threat
- 2.Qd4#
- 1...Se6
- 2.Bxe6#
- 1...f3!
- threat
- 1.Sd3?
- Keys
- 1.Sg6!
- threat
- 2.Re5#
- 1...axb3
- 2.Qxb3#
- 1...Qb5
- 2.Sxe7#
- 1...Sd3
- 2.Qxd3#
- 1...Se4
- 2.Qd3#
- 1...Se6
- 2.Bxe6#
- 1...e5
- 2.Rd6#
- threat
- 1.Sg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(k);N_GUARD,P_PINR(E)::R(I),XQ(k)
- Q(k);N_GUARD::R(I)
- S(a);N_GUARD::QAR2(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- S(j);N_GUARD::B(K),XS(j)
- P(b);OGATE,XP(G)::QAB(B),XP(b)
- P(i);N_GUARD::R1(I)
- Tries
- Try
- S(H);
- Threat
- R1(E)
- Vars
- S(a);OGATE,XS(H)::QAR2(B),XS(a)
- P(b);OGATE,XP(G)::QAB(B),XP(b)
- S(j);N_GUARD::B(K),XS(j)
- P(i);N_GUARD::R1(I)
- Refutation
- S(a);
- Try
- S(H);
- Threat
- R1(E)
- Vars
- P(b);OGATE,XP(G)::QAB(B),XP(b)
- S(a);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR2(B)
- S(j);N_GUARD::B(K),XS(j)
- P(i);N_GUARD::R1(I)
- Refutation
- Q(k);P_PINR(E)
- Try
- S(H);
- Threat
- R1(E)
- Vars
- S(a);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR2(B)
- S(j);N_GUARD::B(K),XS(j)
- P(i);N_GUARD::R1(I)
- Refutation
- P(b);XP(G)
- Try
- S(H);XR(d)
- Threat
- R1(E)
- Vars
- S(a);N_GUARD,XS(H)::QAR2(B)
- P(b);OGATE,XP(G)::QAB(B),XP(b)
- S(a);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR2(B)
- S(j);N_GUARD::B(K),XS(j)
- P(i);N_GUARD::R1(I)
- Refutation
- Q(k);P_PINR(E)
- Try
- S(H);
- Threat
- R1(E)
- Vars
- P(b);OGATE,XP(G)::QAB(B),XP(b)
- S(a);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR2(B)
- S(j);N_GUARD::B(K),XS(j)
- Refutation
- P(i);
- Try
- S(H);
- Threat
- R1(E)
- Vars
- P(b);OGATE,XP(G)::QAB(B),XP(b)
- S(a);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR2(B)
- P(i);N_GUARD::R1(I)
- Refutation
- S(j);
- Try
- S(H);
- Threat
- R1(E)
- Vars
- P(b);OGATE,XP(G)::QAB(B),XP(b)
- S(a);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR2(B)
- S(j);N_GUARD::B(K),XS(j)
- P(i);N_GUARD::R1(I)
- Refutation
- Q(k);P_PINR(E)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(k);N_GUARD,P_PINR(E)::R(I),XQ(k)
- Q(k);N_GUARD::QAB1(B),XQ(k)
- P(c);::QAR1(B)
- Refutation
- Q(k);XB(K)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(k);N_GUARD,P_PINR(E)::R(I),XQ(k)
- Q(k);N_GUARD::QAB1(B),XQ(k)
- S(a);::QAB1(B)
- P(c);::QAR1(B)
- Refutation
- Q(k);XB(K)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- S(j);N_GUARD::B(K),XS(j)
- Refutation
- P(c);
- Try
- Actual
- S(H);
- Threat
- R1(E)
- Vars
- P(b);OGATE,XP(G)::QAB(B),XP(b)
- Q(k);N_GUARD,P_PINR(E)::S(H),XP(i)
- S(a);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR2(B)
- S(j);N_GUARD::B(K),XS(j)
- P(i);N_GUARD::R1(I)
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