MESON Chess Problem Database
Problem Display
PID: 150026 (3b2K1/2p5/2Qn4/3NpB2/3k4/3P1rR1/n4P2/1N4Bb w - - 0 1)
Albaina, Alvaro Ignacio
4th Comm., Problemas, 1991
#2
9 + 8
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Rxf2
- 2.Bxf2#
- 1...Rxd3
- 2.Rxd3#
- 1...Re3
- 2.fxe3#
- 1...Rxg3+
- 2.fxg3#
- 1...Rf4
- 2.f3#
- 1...Rxf5
- 2.f4#
- 1...Sc4
- 2.Qxc4#
- 1...Se4
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...Sxf5
- 2.Qc4#
- 1...Sb7
- 2.Qc4#
- 1...Sf7
- 2.Qc4#
- 1...Sc8
- 2.Qc4#
- 1...Se8
- 2.Qc4#
- 1...Rxf2
- Tries
- 1.Sdc3?
- threat
- 2.Se2#
- 2.Qd5#
- 1...Rxg3+
- 2.fxg3#
- 1...Rxf2
- 2.Se2#
- 2.Bxf2#
- 1...Rxd3
- 2.Se2#
- 2.Rxd3#
- 1...Rxf5
- 2.Se2#
- 2.f4#
- 1...Sxf5
- 2.Qd5#
- 2.Qc4#
- 1...Se4
- 2.Qd5#
- 2.Qc4#
- 1...e4
- 2.Qd5#
- 1...Re3
- 2.fxe3#
- 1...Rf4
- 2.Se2#
- 2.f3#
- 1...Sc1
- 2.Qd5#
- 1...Sb4
- 2.Se2#
- 1...Sxc3!
- threat
- 1.Se3?
- threat
- 2.Sc2#
- 2.Qd5#
- 1...Rxf2
- 2.Sc2#
- 1...Rxe3
- 2.fxe3#
- 1...Rxf5
- 2.Sc2#
- 1...Sxf5
- 2.Qd5#
- 2.Qc4#
- 1...Se4
- 2.Qd5#
- 2.Qc4#
- 1...e4
- 2.Qd5#
- 1...Rf4
- 2.Sc2#
- 1...Sc3
- 2.Sc2#
- 2.Qxc3#
- 1...Sb4
- 2.Qc3#
- 1...Rxg3+!
- threat
- 1.Sb4?
- threat
- 2.Sc2#
- 2.Qd5#
- 1...Rxg3+
- 2.fxg3#
- 1...Rxf2
- 2.Sc2#
- 2.Bxf2#
- 1...Rxd3
- 2.Sc2#
- 2.Rxd3#
- 1...Rxf5
- 2.Sc2#
- 2.f3#
- 2.f4#
- 1...Sxf5
- 2.Qd5#
- 2.Qc4#
- 1...e4
- 2.Qd5#
- 1...Re3
- 2.Sc2#
- 2.fxe3#
- 1...Rf4
- 2.Sc2#
- 2.f3#
- 1...Sc3
- 2.Sc2#
- 2.Qxc3#
- 1...Se4
- 2.Qd5#
- 2.Qc4#
- 1...Sxb4!
- threat
- 1.Sf4?
- threat
- 2.Se2#
- 2.Se6#
- 2.Qd5#
- 1...Rxg3+
- 2.fxg3#
- 1...Rxf2
- 2.Se2#
- 2.Se6#
- 2.Bxf2#
- 1...Rxd3
- 2.Se2#
- 2.Se6#
- 2.Rxd3#
- 1...Rxf4
- 2.f3#
- 1...Sxf5
- 2.Qd5#
- 2.Qc4#
- 1...e4
- 2.Qd5#
- 1...Re3
- 2.Se6#
- 2.fxe3#
- 1...Sc1
- 2.Se6#
- 2.Qd5#
- 2.Qc3#
- 1...Sc3
- 2.Se6#
- 2.Qxc3#
- 1...Sb4
- 2.Se2#
- 2.Se6#
- 2.Qc3#
- 1...Se4
- 2.Qd5#
- 2.Qc4#
- 1...exf4!
- threat
- 1.Sf6?
- threat
- 2.Qd5#
- 1...Rxg3+
- 2.fxg3#
- 1...Rxf2
- 2.Bxf2#
- 1...Rxd3
- 2.Rxd3#
- 1...Rxf5
- 2.f4#
- 1...Re3
- 2.fxe3#
- 1...Rf4
- 2.f3#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Qc3#
- 1...Bxf6!
- threat
- 1.Sxc7?
- threat
- 2.Se6#
- 2.Qd5#
- 2.Qb6#
- 2.Qxd6#
- 1...Rxg3+
- 2.fxg3#
- 1...Rxf2
- 2.Se6#
- 2.Bxf2#
- 2.Qb6#
- 1...Rxd3
- 2.Se6#
- 2.Rxd3#
- 1...Rxf5
- 2.Se6#
- 2.Qb6#
- 2.f4#
- 1...Sxf5
- 2.Qd5#
- 2.Qc4#
- 1...Se4
- 2.Qd5#
- 2.Qc4#
- 1...e4
- 2.Qd5#
- 2.Qxd6#
- 1...Re3
- 2.Se6#
- 2.Qb6#
- 2.fxe3#
- 1...Rf4
- 2.Se6#
- 2.Qb6#
- 2.f3#
- 1...Be7
- 2.Se6#
- 2.Qd5#
- 2.Qb6#
- 1...Sc3
- 2.Se6#
- 2.Qxc3#
- 2.Qb6#
- 1...Sb4
- 2.Se6#
- 2.Qc3#
- 2.Qb6#
- 1...Sc4
- 2.Sb5#
- 2.Se6#
- 2.Qd5#
- 2.Qxc4#
- 1...Sb5
- 2.Sxb5#
- 2.Se6#
- 2.Qd5#
- 2.Qc4#
- 2.Qb6#
- 1...Sb7
- 2.Sb5#
- 2.Se6#
- 2.Qd5#
- 2.Qc4#
- 1...Sf7
- 2.Sb5#
- 2.Se6#
- 2.Qd5#
- 2.Qc4#
- 2.Qb6#
- 1...Sc8
- 2.Sb5#
- 2.Se6#
- 2.Qd5#
- 2.Qc4#
- 1...Se8
- 2.Sb5#
- 2.Se6#
- 2.Qd5#
- 2.Qc4#
- 2.Qb6#
- 1...Bxc7!
- threat
- 1.Se7?
- threat
- 2.Qd5#
- 1...Rxg3+
- 2.fxg3#
- 1...Rxf2
- 2.Bxf2#
- 1...Rxd3
- 2.Rxd3#
- 1...Rxf5
- 2.f4#
- 1...Re3
- 2.fxe3#
- 1...Rf4
- 2.f3#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Qc3#
- 1...Bxe7!
- threat
- 1.Rg4+?
- 1...Rf4
- 2.f3#
- 1...Se4
- 2.Qc4#
- 1...e4!
- 1...Rf4
- 1.Sdc3?
- Keys
- 1.Sb6!
- threat
- 2.Qd5#
- 1...Rxg3+
- 2.fxg3#
- 1...Rxf2
- 2.Bxf2#
- 1...Rxd3
- 2.Rxd3#
- 1...Rxf5
- 2.f4#
- 1...cxb6
- 2.Qxd6#
- 1...Re3
- 2.fxe3#
- 1...Rf4
- 2.f3#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Qc3#
- threat
- 1.Sb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- R(c);OGATE,P_SPINR(c),XP(C)::B(B),XR(c)
- R(c);OGATE,XP(D)::R1(E),XR(c)
- R(c);OGATE::P(C),XR(c)
- R(c);CHECK,OGATE,XR(E)::B(B)+P(C),XR(c)
- R(c);OGATE::B(B)+P(C)
- R(c);OGATE,XB(G)::B(B)+P(C)
- S(f);N_GUARD::QAR1(H),XS(f)
- S(f);N_GUARD::QAR1(H)
- S(f);N_GUARD,XB(G)::QAR1(H)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,OGATE,XR(E)::B(B)+P(C),XR(c)
- P(e);::QAR1(H)
- R(c);OGATE::P(C),XR(c)
- S(b);::QAR1(H)
- S(b);::S(F)
- Refutation
- S(b);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(c);XP(C)::S(F)
- R(c);OGATE,XS(F)::P(C),XR(c)
- R(c);XB(G)::S(F)
- P(e);::QAR1(H)
- R(c);::S(F)
- S(b);N_GUARD::QAB1(H)
- Refutation
- R(c);CHECK,XR(E)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,OGATE,XR(E)::B(B)+P(C),XR(c)
- P(e);::QAR1(H)
- Refutation
- S(b);XS(F)
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- R(c);CHECK,OGATE,XR(E)::B(B)+P(C),XR(c)
- R(c);OGATE,XS(F)::B(B)+P(C)
- P(e);::QAR1(H)
- Refutation
- P(e);XS(F)
- Try
- S(F);
- Threat
- QAR1(H)
- Vars
- R(c);CHECK,OGATE,XR(E)::B(B)+P(C),XR(c)
- R(c);OGATE,P_SPINR(c),XP(C)::B(B),XR(c)
- R(c);OGATE,XP(D)::R1(E),XR(c)
- R(c);OGATE,XB(G)::B(B)+P(C)
- R(c);OGATE::P(C),XR(c)
- R(c);OGATE::B(B)+P(C)
- S(b);N_GUARD::QAB1(H),XS(b)
- S(b);N_GUARD::QAB1(H)
- Refutation
- B(h);XS(F)
- Try
- S(F);XP(g)
- Threat
- DUALS(4)
- Vars
- R(c);CHECK,OGATE,XR(E)::B(B)+P(C),XR(c)
- Refutation
- B(h);XS(F)
- Try
- S(F);
- Threat
- QAR1(H)
- Vars
- R(c);CHECK,OGATE,XR(E)::B(B)+P(C),XR(c)
- R(c);OGATE,P_SPINR(c),XP(C)::B(B),XR(c)
- R(c);OGATE,XP(D)::R1(E),XR(c)
- R(c);OGATE,XB(G)::B(B)+P(C)
- R(c);OGATE::P(C),XR(c)
- R(c);OGATE::B(B)+P(C)
- S(b);N_GUARD::QAB1(H),XS(b)
- S(b);N_GUARD::QAB1(H)
- Refutation
- B(h);XS(F)
- Try
- R(E);CHECK
- Vars
- R(c);OGATE,P_SPINR(c)::B(B)+P(C)
- S(f);P_SPINS(f)::QAR1(H)
- Refutation
- P(e);P_SPINP(e)
- Try
- Actual
- S(F);
- Threat
- QAR1(H)
- Vars
- R(c);CHECK,OGATE,XR(E)::B(B)+P(C),XR(c)
- R(c);OGATE,P_SPINR(c),XP(C)::B(B),XR(c)
- R(c);OGATE,XP(D)::R1(E),XR(c)
- R(c);OGATE,XB(G)::B(B)+P(C)
- P(g);N_GUARD,XS(F)::QAR2(H),XS(f)
- R(c);OGATE::P(C),XR(c)
- R(c);OGATE::B(B)+P(C)
- S(b);N_GUARD::QAB1(H),XS(b)
- S(b);N_GUARD::QAB1(H)
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