MESON Chess Problem Database
Problem Display
PID: 176349 (8/4p1Kb/3RB3/r3k3/1p1R4/2B1p3/7b/5Q2 w - - 0 1)
Hermanson, Halvar
1st Prize, Schach-Echo, 1967
#2
6 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qb5#
- 1...Ra2
- 2.Qb5#
- 1...Ra3
- 2.Qb5#
- 1...Ra4
- 2.Qb5#
- 1...Rb5
- 2.Qxb5#
- 1...Ra6
- 2.Qb5#
- 1...Ra7
- 2.Qb5#
- 1...Ra8
- 2.Qb5#
- 1...Bg1
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Be4
- 2.R4d5#
- 1...Bf5
- 2.Qxf5#
- 1...Bg8
- 2.Qf5#
- 1...exd6
- 2.Qf6#
- 1...Ra1
- Tries
- 1.Kxh7?
- threat
- 2.Qf5#
- 1...Bf4
- 2.Qxf4#
- 1...Rd5!
- threat
- 1.Bh3?
- threat
- 2.Re6#
- 1...exd6
- 2.Qf6#
- 1...Ra6
- 2.R6d5#
- 2.Qb5#
- 1...Bf5
- 2.Qxf5#
- 1...Bg8
- 2.Qf5#
- 1...e6
- 2.Rxe6#
- 2.Qf6#
- 1...bxc3!
- threat
- 1.Bg4?
- threat
- 2.Re6#
- 1...exd6
- 2.Qf6#
- 1...Ra6
- 2.R6d5#
- 2.Qb5#
- 1...Bf5
- 2.Qxf5#
- 1...Bg8
- 2.Qf5#
- 1...e6
- 2.Rxe6#
- 2.Qf6#
- 1...bxc3!
- threat
- 1.Bd7?
- threat
- 2.Re6#
- 1...exd6
- 2.Qf6#
- 1...Ra6
- 2.R6d5#
- 2.Qb5#
- 1...Bf4
- 2.Qxf4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg8
- 2.Qf5#
- 1...e6
- 2.Rxe6#
- 2.Qf6#
- 1...bxc3!
- threat
- 1.Bc8?
- threat
- 2.Re6#
- 1...exd6
- 2.Qf6#
- 1...Ra6
- 2.R6d5#
- 2.Qb5#
- 1...Bf4
- 2.Qxf4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg8
- 2.Qf5#
- 1...e6
- 2.Rxe6#
- 2.Qf6#
- 1...bxc3!
- threat
- 1.R6d5+?
- 1...Kxe6
- 2.Qf7#
- 1...Rxd5!
- 1...Kxe6
- 1.Qh3?
- threat
- 2.Qxh2#
- 1...exd6
- 2.Rxb4#
- 1...Ra2
- 2.R6d5#
- 1...Bg1
- 2.Qg3#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4!
- threat
- 1.Qf3?
- threat
- 2.R4d5#
- 1...exd6
- 2.Re4#
- 2.Qf6#
- 1...Rd5
- 2.R4xd5#
- 2.Qxd5#
- 1...bxc3!
- threat
- 1.Kxh7?
- Keys
- 1.Qg2!
- threat
- 2.Qxh2#
- 1...exd6
- 2.Re4#
- 1...Ra2
- 2.Qd5#
- 1...Bg1
- 2.Qg3#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4
- 2.R4d5#
- threat
- 1.Qg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- R(d);N_GUARD::QAR(A)
- R(d);N_GUARD::QAR(A),XR(d)
- B(a);N_GUARD::QAB1(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(g);SBLOCK::B(B)+R(C),DCHECK
- B(g);N_GUARD::QAR1(A),XB(g)
- B(g);N_GUARD::QAR1(A)
- P(f);N_GUARD,XR(D)::QAB1(A)
- Tries
- Try
- K(F);P-FLIGHT,XB(g)
- Threat
- QAR1(A)
- Vars
- B(a);N_GUARD::QAB1(A),XB(a)
- Refutation
- R(d);
- Try
- B(E);
- Threat
- R1(D)
- Vars
- P(f);N_GUARD,XR(D)::QAB1(A)
- B(g);N_GUARD::QAR1(A),XB(g)
- B(g);N_GUARD::QAR1(A)
- Refutation
- P(c);XB(B)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- P(f);N_GUARD,XR(D)::QAB1(A)
- B(g);N_GUARD::QAR1(A),XB(g)
- B(g);N_GUARD::QAR1(A)
- Refutation
- P(c);XB(B)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- P(f);N_GUARD,XR(D)::QAB1(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(g);N_GUARD::QAR1(A),XB(g)
- B(g);N_GUARD::QAR1(A)
- Refutation
- P(c);XB(B)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- P(f);N_GUARD,XR(D)::QAB1(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(g);N_GUARD::QAR1(A),XB(g)
- B(g);N_GUARD::QAR1(A)
- Refutation
- P(c);XB(B)
- Try
- R(D);CHECK
- Vars
- K(e);P-FLIGHT,XB(E)::QAB1(A)
- Refutation
- R(d);XR(D)
- Try
- Q(A);
- Threat
- QAB(A),XB(a)
- Vars
- P(f);SBLOCK,XR(D)::B(B)+R(C),XP(c)
- R(d);N_GUARD::R1(D)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- Refutation
- B(a);
- Try
- Q(A);
- Threat
- B(B)+R(C),DCHECK
- Refutation
- P(c);XB(B)
- Try
- Actual
- Q(A);
- Threat
- QAB(A),XB(a)
- Vars
- P(f);SBLOCK,XR(D)::B(B)+R(C),DCHECK
- R(d);N_GUARD::QAR1(A)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::B(B)+R(C),DCHECK
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