MESON Chess Problem Database
Problem Display
PID: 247002 (3R4/1p2r3/6Q1/5n2/2NNk2b/5n1b/K1P3B1/2B2r2 w - - 0 1)
Froberg, Johan Hilding Laurentius
Hildebrand, Alexander
Jonsson, Christer
Uralski Problemist, 1997
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Bxf3#
- 1...Re1
- 2.Bxf3#
- 1...Rg1
- 2.Bxf3#
- 1...Rh1
- 2.Bxf3#
- 1...Re6
- 2.Qxe6#
- 1...Rc7
- 2.Qe6#
- 1...Rf7
- 2.Qe6#
- 1...Rg7
- 2.Qe6#
- 1...Rh7
- 2.Qe6#
- 1...Bxg2
- 2.Qxf5#
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bf2
- 2.Bxf3#
- 1...b5
- 2.Qc6#
- 1...b6
- 2.Qc6#
- 1...Rd1
- Tries
- 1.Sb3?
- threat
- 2.Sc5#
- 2.Rd4#
- 1...Rxc1
- 2.Rd4#
- 1...Bxg2
- 2.Sc5#
- 2.Qg4#
- 1...Rd7
- 2.Qe6#
- 1...Rd1
- 2.Sc5#
- 1...Re5
- 2.Rd4#
- 1...Rc7
- 2.Rd4#
- 2.Qe6#
- 1...Bf6
- 2.Sc5#
- 1...b6
- 2.Rd4#
- 2.Qc6#
- 1...Bf2!
- threat
- 1.Sxf3?
- threat
- 2.Sg5#
- 2.Rd4#
- 1...Rxc1
- 2.Rd4#
- 1...Bxg2
- 2.Qg4#
- 1...Rd7
- 2.Qe6#
- 1...Rd1
- 2.Sg5#
- 1...Bf2
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 2.Rd4#
- 1...Bf6
- 2.Sg5#
- 1...Rxf3!
- threat
- 1.Sb5?
- threat
- 2.Sc3#
- 2.Rd4#
- 1...Rxc1
- 2.Rd4#
- 1...Bxg2
- 2.Sc3#
- 2.Qg4#
- 1...Rd7
- 2.Qe6#
- 1...Rd1
- 2.Sc3#
- 1...Be1
- 2.Rd4#
- 1...Bf2
- 2.Sc3#
- 1...Bf6!
- threat
- 1.Sxf5?
- threat
- 2.Sg3#
- 2.Rd4#
- 1...Rxc1
- 2.Rd4#
- 1...Bxg2
- 2.Sg3#
- 2.Sd4#
- 2.Sxh4#
- 2.Sh6#
- 2.Sxe7#
- 2.Sg7#
- 2.Qg4#
- 1...Rd7
- 2.Qe6#
- 1...Rd1
- 2.Sg3#
- 1...Bf2
- 2.Sg3#
- 1...Bg3
- 2.Sxg3#
- 2.Rd4#
- 1...Bf6
- 2.Sg3#
- 1...Bxf5!
- threat
- 1.Se6?
- threat
- 2.Sc5#
- 2.Rd4#
- 1...Rxc1
- 2.Rd4#
- 1...Rxe6
- 2.Qxe6#
- 1...Bxg2
- 2.Sc5#
- 2.Qg4#
- 1...Bf2
- 2.Sg5#
- 1...Rd1
- 2.Sc5#
- 1...Rc7
- 2.Rd4#
- 1...Bf6
- 2.Sc5#
- 1...b6
- 2.Rd4#
- 1...Rd7!
- threat
- 1.Qd6?
- threat
- 2.Qf4#
- 2.Qd5#
- 1...Rxc1
- 2.Bxf3#
- 1...Re5
- 2.Qxe5#
- 1...Rd7
- 2.Qe5#
- 1...Bg3
- 2.Qd5#
- 1...Bg5
- 2.Qd5#
- 1...Se3
- 2.Sd2#
- 1...Sxd6!
- threat
- 1.Sb3?
- Keys
- 1.Se2!
- threat
- 2.Sc3#
- 2.Rd4#
- 1...Rxc1
- 2.Rd4#
- 1...Bxg2
- 2.Sc3#
- 2.Qg4#
- 1...Rd7
- 2.Qe6#
- 1...Rd1
- 2.Sc3#
- 1...Be1
- 2.Rd4#
- 1...Bf2
- 2.Sc3#
- 1...Bf6
- 2.Sg3#
- threat
- 1.Se2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 11
- Sets
- R(a);N_GUARD::B(D),XS(b)
- R(h);N_GUARD::QAR2(G),XR(h)
- R(h);N_GUARD::QAR2(G)
- B(c);N_GUARD::QAR2(G),XB(c)
- B(e);S_CUTR(a)::B(D),XS(b)
- P(g);N_GUARD::QAB(G)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);XB(A)::R1(H)
- R(h);N_GUARD::QAR2(G)
- R(a);::S(F)
- R(h);::R1(H)
- B(e);::S(F)
- Refutation
- B(e);
- Try
- S(F);P_PINS(f),XS(b)
- Threat
- DUALS(2)
- Vars
- R(a);XB(A)::R1(H)
- B(c);N_GUARD,XB(D)::QAR2(G)
- R(h);N_GUARD::QAR2(G)
- R(a);::B(D)+S(F),DCHECK
- B(e);::B(D)+S(F),DCHECK
- Refutation
- R(a);P_SPINR(a),XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);XB(A)::R1(H)
- R(h);N_GUARD::QAR2(G)
- R(a);::S(F)
- B(e);::R1(H)
- B(e);::S(F)
- Refutation
- B(e);
- Try
- S(F);XS(f)
- Threat
- DUALS(2)
- Vars
- R(a);XB(A)::R1(H)
- R(h);N_GUARD::QAR2(G)
- R(a);::QAB(G)+S(F),DCHECK
- B(e);::QAB(G)+S(F),DCHECK
- Refutation
- B(c);P_SPINB(c),XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);XB(A)::R1(H)
- R(h);OGATE,XS(F)::QAR2(G),XR(h)
- B(e);N_GUARD::S(F)
- R(a);::S(F)
- R(h);::R1(H)
- B(e);::S(F)
- P(g);::R1(H)
- Refutation
- R(h);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD,XB(A)::B(D),XS(b)
- R(h);N_GUARD::QAR1(G),XR(h)
- R(h);N_GUARD::QAR1(G)
- B(e);::QAB1(G)
- S(f);SBLOCK::S(E)
- Refutation
- S(f);XQ(G)
- Try
- Actual
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);XB(A)::R1(H)
- R(h);N_GUARD::QAR2(G)
- R(a);::S(F)
- B(e);::R1(H)
- B(e);::S(F)
- B(e);N_GUARD::S(F)
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