MESON Chess Problem Database
Problem Display
PID: 45595 (qn6/4p3/b1r3R1/4RBN1/r1Qp1kN1/6pK/8/8 w - - 0 1)
Hannelius, Jan Ingvar
8th Comm., BCF 054. Ty., 1946-1947
#2
7 + 9
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxd4#
- 1...Ra2
- 2.Qxd4#
- 1...Ra3
- 2.Qxd4#
- 1...Ra5
- 2.Qxd4#
- 1...Rb6
- 2.Qc1#
- 1...Rd6
- 2.Qc1#
- 1...Re6
- 2.Qc1#
- 1...Rf6
- 2.Qc1#
- 1...Rxg6
- 2.Qc1#
- 1...Bb7
- 2.Qf1#
- 1...Bc8
- 2.Qf1#
- 1...Ra1
- Tries
- 1.Se6+?
- 1...Kf3
- 2.Be4#
- 2.Qd5#
- 1...Rxe6!
- 1...Kf3
- 1.Bc2?
- threat
- 2.Rf5#
- 1...Ra5
- 2.Qxd4#
- 1...Rc5
- 2.Qf7#
- 1...Bc8
- 2.Qf1#
- 1...e6
- 2.Rf6#
- 1...Rf6!
- threat
- 1.Bd3?
- threat
- 2.Rf5#
- 1...Ra5
- 2.Qxd4#
- 1...Rc5
- 2.Qf7#
- 1...Rf6
- 2.Qc1#
- 1...e6
- 2.Rf6#
- 1...Bc8!
- threat
- 1.Be4?
- threat
- 2.Rf5#
- 1...Rc5
- 2.Se6#
- 2.Qf7#
- 1...Rf6
- 2.Qc1#
- 1...Bc8
- 2.Qf1#
- 1...e6
- 2.Rf6#
- 1...Ra5!
- threat
- 1.Be6?
- threat
- 2.Re4#
- 2.Rf5#
- 1...Rcxc4
- 2.Rf5#
- 1...Rxe6
- 2.Qc1#
- 1...Ra5
- 2.Re4#
- 2.Qxd4#
- 1...Rb6
- 2.Rf5#
- 2.Qc1#
- 1...Rd6
- 2.Rf5#
- 2.Qc1#
- 1...Rc7
- 2.Rf5#
- 1...Rc8
- 2.Rf5#
- 1...Rc5!
- threat
- 1.Bd7?
- threat
- 2.Re4#
- 2.Rf5#
- 1...Rcxc4
- 2.Rf5#
- 1...Rxg6
- 2.Rf5#
- 2.Qc1#
- 1...Ra5
- 2.Re4#
- 2.Qxd4#
- 1...Rc5
- 2.Qf7#
- 1...Rb6
- 2.Rf5#
- 2.Qc1#
- 1...Rd6
- 2.Rf5#
- 2.Qc1#
- 1...Re6
- 2.Qc1#
- 1...Rf6
- 2.Qc1#
- 1...Rc7
- 2.Rf5#
- 2.Qf7#
- 1...Rc8
- 2.Rf5#
- 2.Qf7#
- 1...e6
- 2.Rf6#
- 1...Sxd7!
- threat
- 1.Bc8?
- threat
- 2.Re4#
- 2.Rf5#
- 1...Rcxc4
- 2.Rf5#
- 1...Rxg6
- 2.Rf5#
- 2.Qc1#
- 1...Rxc8
- 2.Qf7#
- 1...Bxc8
- 2.Qf1#
- 1...Ra5
- 2.Re4#
- 2.Qxd4#
- 1...Rc5
- 2.Qf7#
- 1...Rb6
- 2.Rf5#
- 2.Qc1#
- 1...Rd6
- 2.Rf5#
- 2.Qc1#
- 1...Re6
- 2.Qc1#
- 1...Rf6
- 2.Qc1#
- 1...Rc7
- 2.Rf5#
- 2.Qf7#
- 1...e6
- 2.Rf6#
- 1...Sd7!
- threat
- 1.Qe2?
- threat
- 2.Qf3#
- 2.Qd2#
- 2.Qe4#
- 1...Rxg6
- 2.Qd2#
- 1...Ra2
- 2.Qf3#
- 2.Qe4#
- 1...Ra3
- 2.Qe4#
- 1...Rc1
- 2.Se6#
- 2.Qd2#
- 1...Rc2
- 2.Se6#
- 1...Rc3
- 2.Se6#
- 1...Rcc4
- 2.Se6#
- 2.Qd2#
- 1...Rc5
- 2.Se6#
- 2.Qd2#
- 1...Rb6
- 2.Qd2#
- 1...Rd6
- 2.Qd2#
- 1...Re6
- 2.Sxe6#
- 2.Qd2#
- 1...Rf6
- 2.Qd2#
- 1...Rc7
- 2.Se6#
- 2.Qd2#
- 1...Rc8
- 2.Se6#
- 2.Qd2#
- 1...Bd3
- 2.Qf3#
- 2.Qd2#
- 1...d3
- 2.Qf1#
- 2.Qf3#
- 2.Qd2#
- 2.Qe3#
- 1...Bxe2!
- threat
- 1.Qd3?
- threat
- 2.Qe4#
- 2.Qd2#
- 2.Qf3#
- 2.Qxg3#
- 1...Rxg6
- 2.Qd2#
- 1...Ra2
- 2.Qe4#
- 2.Qf3#
- 2.Qxg3#
- 2.Qxd4#
- 1...Ra3
- 2.Qe4#
- 2.Qxd4#
- 1...Rc1
- 2.Se6#
- 2.Qd2#
- 2.Qxg3#
- 1...Rc2
- 2.Se6#
- 2.Qxg3#
- 1...Rc3
- 2.Se6#
- 1...Rcc4
- 2.Se6#
- 2.Qd2#
- 2.Qxg3#
- 1...Rc5
- 2.Se6#
- 2.Qd2#
- 2.Qxg3#
- 1...Rb6
- 2.Qd2#
- 2.Qxg3#
- 1...Rd6
- 2.Qd2#
- 2.Qxg3#
- 1...Re6
- 2.Sxe6#
- 2.Qd2#
- 2.Qxg3#
- 1...Rf6
- 2.Qd2#
- 2.Qxg3#
- 1...Rc7
- 2.Se6#
- 2.Qd2#
- 2.Qxg3#
- 1...Rc8
- 2.Se6#
- 2.Qd2#
- 2.Qxg3#
- 1...g2
- 2.Qe4#
- 2.Qd2#
- 2.Qf3#
- 2.Qg3#
- 1...Bxd3!
- threat
- 1.Se6+?
- Keys
- 1.Bb1!
- threat
- 2.Rf5#
- 1...Ra5
- 2.Qxd4#
- 1...Rc5
- 2.Qf7#
- 1...Rf6
- 2.Qc1#
- 1...Bc8
- 2.Qf1#
- 1...e6
- 2.Rf6#
- threat
- 1.Bb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(b);N_GUARD::QAR2(B),XP(c)
- R(f);N_GUARD::QAB(B)
- R(f);N_GUARD,XR(G)::QAB(B)
- B(e);N_GUARD::QAR(B)
- Tries
- Try
- S(F);CHECK
- Refutation
- R(f);XS(F)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- R(b);N_GUARD::QAR2(B),XP(c)
- R(f);N_GUARD::QAR(B)
- B(e);N_GUARD,P_PINS(C)::QAR(B)
- P(g);N_GUARD,S_CUTR(f)::R(G)
- Refutation
- R(f);
- Try
- B(E);
- Threat
- R1(D)
- Vars
- R(b);N_GUARD::QAR2(B),XP(c)
- R(f);N_GUARD::QAR(B)
- R(f);N_GUARD::QAB(B)
- P(g);N_GUARD,S_CUTR(f)::R(G)
- Refutation
- B(e);P_PINS(C)
- Try
- B(E);N_PINP(c)
- Threat
- R1(D)
- Vars
- R(f);N_GUARD::QAB(B)
- B(e);N_GUARD,P_PINS(C)::QAR(B)
- P(g);N_GUARD,S_CUTR(f)::R(G)
- Refutation
- R(b);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(f);N_SPINP(c),XQ(B)::R1(D)
- R(f);N_GUARD,XB(E)::QAB(B)
- R(f);::R1(D)
- Refutation
- R(f);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(f);N_SPINP(c),XQ(B)::R1(D)
- R(f);N_GUARD::QAR(B)
- R(f);N_GUARD::QAB(B)
- P(g);N_GUARD,S_CUTR(f)::R(G)
- Refutation
- S(i);XB(E)
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(f);N_SPINP(c),XQ(B)::R1(D)
- R(f);N_GUARD,XB(E)::QAR(B)
- B(e);N_GUARD,P_PINS(C),XB(E)::QAR(B)
- R(f);N_GUARD::QAR(B)
- R(f);N_GUARD::QAB(B)
- P(g);N_GUARD,S_CUTR(f)::R(G)
- Refutation
- S(i);
- Try
- Q(B);N_PINP(c)
- Threat
- DUALS(3)
- Vars
- R(f);XR(G)::QAB(B)
- R(b);::QAR1(B)
- R(f);N_GUARD::S(F)
- R(f);::QAB(B)
- Refutation
- B(e);XQ(B)
- Try
- Q(B);N_PINP(c)
- Threat
- DUALS(4)
- Vars
- R(f);XR(G)::QAB(B)
- R(f);N_GUARD::S(F)
- Refutation
- B(e);XQ(B)
- Try
- Actual
- B(E);
- Threat
- R1(D)
- Vars
- R(b);N_GUARD::QAR2(B),XP(c)
- R(f);N_GUARD::QAR(B)
- R(f);N_GUARD::QAB(B)
- B(e);N_GUARD,P_PINS(C)::QAR(B)
- P(g);N_GUARD,S_CUTR(f)::R(G)
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