MESON Chess Problem Database
Problem Display
PID: 102990 (8/8/2pN2p1/p1P1R1Bp/P6K/1nk5/Q1N1P3/8 w - - 0 1)
Hermanson, Halvar
2nd Prize, Norsk Vanforetidsskrift, 1954
#2
9 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Se4#
- 1...Sc1
- 2.Se4#
- 1...Sd2
- 2.Re3#
- 1...Sd4
- 2.Se4#
- 1...Sxc5
- 2.Rxc5#
- 1...Sa1
- Tries
- 1.Kg3?
- 1...Sxc5
- 2.Rxc5#
- 1...Sa1
- 2.Se4#
- 1...Sc1
- 2.Se4#
- 1...Sd2
- 2.Re3#
- 1...Sd4
- 2.Se4#
- 1...h4+!
- 1...Sxc5
- 1.Kh3?
- 1...Sxc5
- 2.Rxc5#
- 1...Sa1
- 2.Se4#
- 1...Sc1
- 2.Se4#
- 1...Sd2
- 2.Re3#
- 1...Sd4
- 2.Se4#
- 1...h4!
- 1...Sxc5
- 1.Sa1?
- 1...Kb4
- 2.Qxb3#
- 1...Kd4
- 2.Qb2#
- 1...Sxc5
- 2.Qd2#
- 1...Sc1
- 2.Qd2#
- 1...Sd2
- 2.Qxd2#
- 1...Sd4
- 2.Bd2#
- 2.Qd2#
- 1...Sxa1!
- 1...Kb4
- 1.Sc4?
- 1...Sxc5
- 2.Bd2#
- 1...Sa1
- 2.Bd2#
- 2.Re3#
- 1...Sc1
- 2.Bd2#
- 1...Sd2
- 2.Bxd2#
- 2.Re3#
- 1...Sd4
- 2.Bd2#
- 2.Re3#
- 1...Kxc4!
- 1...Sxc5
- 1.Bc1?
- threat
- 2.Re3#
- 2.Qb2#
- 1...Sxc1
- 2.Se4#
- 1...Sxc5
- 2.Rxc5#
- 2.Qc4#
- 2.Qb2#
- 1...g5+!
- threat
- 1.Bd2+?
- 1...Sxd2
- 2.Re3#
- 1...Kxd2!
- 1...Sxd2
- 1.Be3?
- 1...Sxc5
- 2.Rxc5#
- 1...Sa1
- 2.Se4#
- 1...Sc1
- 2.Se4#
- 1...Sd2
- 2.Bd4#
- 1...Sd4
- 2.Se4#
- 1...g5+!
- 1...Sxc5
- 1.Bf4?
- 1...Sxc5
- 2.Rxc5#
- 1...Sa1
- 2.Se4#
- 1...Sc1
- 2.Se4#
- 1...Sd2
- 2.Re3#
- 1...Sd4
- 2.Se4#
- 1...g5+!
- 1...Sxc5
- 1.Bh6?
- 1...Sxc5
- 2.Rxc5#
- 1...Sa1
- 2.Se4#
- 1...Sc1
- 2.Se4#
- 1...Sd2
- 2.Re3#
- 1...Sd4
- 2.Se4#
- 1...g5+!
- 1...Sxc5
- 1.Re4?
- threat
- 2.Rc4#
- 1...Sd2
- 2.Bf6#
- 2.Re3#
- 1...Sd4!
- threat
- 1.Rd5?
- threat
- 2.Rd3#
- 1...Sxc5
- 2.Bd2#
- 2.Bf6#
- 2.Rxc5#
- 1...Sc1
- 2.Se4#
- 2.Bd2#
- 2.Bf6#
- 1...Sd4
- 2.Se4#
- 1...cxd5!
- threat
- 1.Rf5?
- threat
- 2.Rf3#
- 1...Sxc5
- 2.Rxc5#
- 1...Sc1
- 2.Se4#
- 1...Sd2
- 2.Bf6#
- 1...Sd4
- 2.Se4#
- 1...gxf5!
- threat
- 1.Re6?
- 1...Sa1
- 2.Se4#
- 1...Sc1
- 2.Se4#
- 1...Sd2
- 2.Bf6#
- 2.Re3#
- 1...Sd4
- 2.Se4#
- 1...Sxc5!
- 1...Sa1
- 1.Re7?
- 1...Sa1
- 2.Se4#
- 1...Sc1
- 2.Se4#
- 1...Sd2
- 2.Bf6#
- 2.Re3#
- 1...Sd4
- 2.Se4#
- 1...Sxc5!
- 1...Sa1
- 1.Re8?
- 1...Sa1
- 2.Se4#
- 1...Sc1
- 2.Se4#
- 1...Sd2
- 2.Bf6#
- 2.Re3#
- 1...Sd4
- 2.Se4#
- 1...Sxc5!
- 1...Sa1
- 1.Kg3?
- Keys
- 1.Sd4!
- 1...Kb4
- 2.Qxb3#
- 1...Kxd4
- 2.Qb2#
- 1...Sxd4
- 2.Bd2#
- 1...Sxc5
- 2.Qd2#
- 1...Sa1
- 2.Qd2#
- 1...Sc1
- 2.Qd2#
- 1...Sd2
- 2.Qxd2#
- 1...Kb4
- 1.Sd4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);::S(I)
- S(a);SBLOCK::R(G)
- S(a);OGATE,XP(F)::R(G),XS(a)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- S(a);OGATE,XP(F)::R(G),XS(a)
- S(a);::S(I)
- S(a);SBLOCK::R(G)
- Refutation
- P(d);CHECK
- Try
- K(E);P-FLIGHT
- Vars
- S(a);OGATE,XP(F)::R(G),XS(a)
- S(a);::S(I)
- S(a);SBLOCK::R(G)
- Refutation
- P(d);
- Try
- S(B);
- Vars
- K(b);S_FLIGHT::QAR1(A),XS(a)
- K(b);S_FLIGHT::QAB(A)
- S(a);N_GUARD,XP(F)::QAB1(A)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- S(a);XS(B)
- Try
- S(I);
- Vars
- S(a);N_GUARD,XP(F)::B(H)
- S(a);N_GUARD::B(H)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a),XS(I)
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- S(a);XB(H)::S(I)
- Refutation
- P(f);CHECK
- Try
- B(H);CHECK
- Vars
- S(a);SBLOCK,XB(H)::R(G)
- Refutation
- K(b);S_FLIGHT,XB(H)
- Try
- B(H);
- Vars
- S(a);OGATE,XP(F)::R(G),XS(a)
- S(a);::S(I)
- S(a);N_GUARD,SBLOCK::B(H)
- Refutation
- P(f);CHECK
- Try
- B(H);
- Vars
- S(a);OGATE,XP(F)::R(G),XS(a)
- S(a);::S(I)
- S(a);SBLOCK::R(G)
- Refutation
- P(f);CHECK
- Try
- B(H);
- Vars
- S(a);OGATE,XP(F)::R(G),XS(a)
- S(a);::S(I)
- S(a);SBLOCK::R(G)
- Refutation
- P(f);CHECK
- Try
- R(G);
- Threat
- R1(G)
- Refutation
- S(a);
- Try
- R(G);
- Threat
- R1(G)
- Vars
- S(a);::S(I)
- Refutation
- P(e);XR(G)
- Try
- R(G);
- Threat
- R(G)
- Vars
- S(a);OGATE,XP(F)::R(G),XS(a)
- S(a);::S(I)
- S(a);N_GUARD,SBLOCK::B(H)
- Refutation
- P(f);XR(G)
- Try
- R(G);
- Vars
- S(a);::S(I)
- Refutation
- S(a);XP(F)
- Try
- R(G);
- Vars
- S(a);::S(I)
- Refutation
- S(a);XP(F)
- Try
- R(G);
- Vars
- S(a);::S(I)
- Refutation
- S(a);XP(F)
- Try
- Actual
- S(B);
- Vars
- K(b);S_FLIGHT::QAR1(A),XS(a)
- K(b);S_FLIGHT,XS(B)::QAB(A)
- S(a);N_GUARD,SBLOCK,XS(B)::B(H)
- S(a);N_GUARD,XP(F)::QAB1(A)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
Developed and maintained by Brian Stephenson.
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