MESON Chess Problem Database
Problem Display
PID: 181319 (b1Qr4/5p2/1p2pK1B/R2p4/2pNk2n/5p2/1p1R4/n2BN3 w - - 0 1)
Armeni, Alberto
2nd Prize, Problem Observer, 2014
#2
8 + 12
| 136 | Problem Observer | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Bxc2#
- 1...Sb3
- 2.Bc2#
- 1...Sg2
- 2.Bxf3#
- 1...Sf5
- 2.Bxf3#
- 1...Sg6
- 2.Bxf3#
- 1...e5
- 2.Qg4#
- 1...Sc2
- Tries
- 1.Sdc2?
- threat
- 2.Rd4#
- 1...Sxc2
- 2.Bxc2#
- 1...Sf5
- 2.Bxf3#
- 1...d4
- 2.Re5#
- 1...e5
- 2.Qg4#
- 1...Sb3!
- threat
- 1.Se2?
- threat
- 2.Sc3#
- 2.Sg3#
- 2.Rd4#
- 1...b1S
- 2.Sg3#
- 2.Rd4#
- 1...Rg8
- 2.Sc3#
- 2.Rd4#
- 1...Sc2
- 2.Sc3#
- 2.Sg3#
- 2.Bxc2#
- 1...Sb3
- 2.Sc3#
- 2.Sg3#
- 2.Bc2#
- 1...Sf5
- 2.Sc3#
- 1...c3
- 2.Sxc3#
- 2.Sg3#
- 2.Rd4#
- 1...d4
- 2.Sg3#
- 2.Re5#
- 1...e5
- 2.Sc3#
- 2.Sg3#
- 2.Qg4#
- 1...fxe2!
- threat
- 1.Sb3?
- threat
- 2.Rd4#
- 1...Sxb3
- 2.Bc2#
- 1...Sc2
- 2.Bxc2#
- 1...Sf5
- 2.Bxf3#
- 1...d4
- 2.Re5#
- 1...e5
- 2.Qg4#
- 1...cxb3!
- threat
- 1.Sdxf3?
- threat
- 2.Re2#
- 2.Rd4#
- 1...Sxf3
- 2.Bxf3#
- 1...Sc2
- 2.Bxc2#
- 1...Sb3
- 2.Bc2#
- 2.Re2#
- 1...Sg2
- 2.Rd4#
- 1...d4
- 2.Re2#
- 2.Re5#
- 1...e5
- 2.Re2#
- 2.Qg4#
- 1...Sf5!
- threat
- 1.Sb5?
- threat
- 2.Sc3#
- 2.Rd4#
- 1...b1S
- 2.Rd4#
- 1...Sc2
- 2.Sc3#
- 2.Bxc2#
- 1...Sb3
- 2.Sc3#
- 2.Bc2#
- 1...Sf5
- 2.Sc3#
- 2.Bxf3#
- 1...c3
- 2.Sxc3#
- 2.Rd4#
- 1...e5
- 2.Sc3#
- 2.Qg4#
- 1...d4!
- threat
- 1.Sf5?
- threat
- 2.Sg3#
- 2.Rd4#
- 1...Sxf5
- 2.Bxf3#
- 1...Rg8
- 2.Sd6#
- 2.Rd4#
- 1...Sc2
- 2.Sg3#
- 2.Bxc2#
- 1...Sb3
- 2.Sg3#
- 2.Bc2#
- 1...d4
- 2.Sg3#
- 2.Re5#
- 1...e5
- 2.Sg3#
- 1...exf5!
- threat
- 1.Sc6?
- threat
- 2.Rd4#
- 1...Sc2
- 2.Bxc2#
- 1...Sb3
- 2.Bc2#
- 1...Sf5
- 2.Bxf3#
- 1...d4
- 2.Re5#
- 1...e5
- 2.Qg4#
- 1...Bxc6!
- threat
- 1.Ra3?
- threat
- 2.Re3#
- 1...Sc2
- 2.Bxc2#
- 1...Sb3
- 2.Bc2#
- 1...Sg2
- 2.Bxf3#
- 1...Sf5
- 2.Bxf3#
- 1...c3!
- threat
- 1.Qc7?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Sg2
- 2.Bxf3#
- 2.Qe5#
- 1...Sg6
- 2.Bxf3#
- 1...e5
- 2.Qxe5#
- 1...Rd6!
- threat
- 1.Sdc2?
- Keys
- 1.Sxe6!
- threat
- 2.Rd4#
- 1...fxe6
- 2.Qxe6#
- 1...Sc2
- 2.Bxc2#
- 1...Sb3
- 2.Bc2#
- 1...Sf5
- 2.Bxf3#
- 1...d4
- 2.Re5#
- threat
- 1.Sxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- S(f);N_GUARD::B(A),XP(c)
- P(i);OGATE::QAR2(H)
- Tries
- Try
- S(D);
- Threat
- R1(C)
- Vars
- S(a);OGATE,XS(D)::B(A),XS(a)
- S(f);N_GUARD::B(A),XP(c)
- P(g);OGATE::R1(E)
- P(i);OGATE::QAR2(H)
- Refutation
- S(a);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- S(f);::S(D)
- Refutation
- P(c);XS(D)
- Try
- S(D);
- Threat
- R1(C)
- Vars
- S(a);N_GUARD,XS(D)::B(A)
- S(a);N_GUARD::B(A),XS(a)
- S(f);N_GUARD::B(A),XP(c)
- P(g);OGATE::R1(E)
- P(i);OGATE::QAR2(H)
- Refutation
- P(d);XS(D)
- Try
- S(D);XP(c)
- Threat
- DUALS(2)
- Vars
- S(f);OGATE,XS(D)::B(A),XS(f)
- S(a);N_GUARD::B(A),XS(a)
- S(f);::R1(C)
- Refutation
- S(f);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(b);::R1(C)
- Refutation
- P(g);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(f);N_GUARD,XS(D)::B(A),XP(c)
- P(i);::S(D)
- Refutation
- P(i);XS(D)
- Try
- S(D);
- Threat
- R1(C)
- Vars
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- S(f);N_GUARD::B(A),XP(c)
- P(g);OGATE::R1(E)
- P(i);OGATE::QAR2(H)
- Refutation
- B(k);XS(D)
- Try
- R(E);
- Threat
- R1(E)
- Vars
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- S(f);N_GUARD::B(A),XP(c)
- Refutation
- P(d);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(f);N_GUARD::B(A),XP(c)
- P(i);::QAR1(H),XP(i)
- Refutation
- R(l);
- Try
- Actual
- S(D);XP(i)
- Threat
- R1(C)
- Vars
- P(j);OGATE,XS(D)::QAR2(H),XP(j)
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- S(f);N_GUARD::B(A),XP(c)
- P(g);OGATE::R1(E)
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