MESON Chess Problem Database
Problem Display
PID: 179914 (B2N3r/8/3PP3/Np1PbRP1/rB1pk1P1/8/p2KP3/5RQb w - - 0 1)
Gross, Erwin
2nd Comm., Wirtanen MT, 1963
#2
14 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxd8
- 2.Qxh1#
- 1...Re8
- 2.Qxh1#
- 1...Rf8
- 2.Qxh1#
- 1...Rg8
- 2.Qxh1#
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.exf3#
- 1...Bh2
- 2.Qxh1#
- 1...Bf4+
- 2.R1xf4#
- 1...Bf6
- 2.R1f4#
- 1...Bg7
- 2.R1f4#
- 1...d3
- 2.Qe3#
- 2.exd3#
- 1...Rxd8
- Tries
- 1.Sb3?
- threat
- 2.Sc5#
- 1...Bf4+
- 2.R1xf4#
- 1...Bxd6
- 2.Qxd4#
- 1...Rxa8!
- threat
- 1.Sac6?
- threat
- 2.Rxe5#
- 1...Bf4+
- 2.R1xf4#
- 1...Kxd5
- 2.Sa5#
- 2.Qxd4#
- 1...Bxd6
- 2.Qxd4#
- 1...Bh2
- 2.Qxd4#
- 2.Qxh1#
- 1...Bg3
- 2.Qxd4#
- 1...Bf6
- 2.R1f4#
- 1...Bg7
- 2.R1f4#
- 1...Bf3!
- threat
- 1.Sab7?
- threat
- 2.Sc5#
- 1...Bf4+
- 2.R1xf4#
- 1...Kxd5
- 2.Sa5#
- 1...Bxd6
- 2.Sxd6#
- 1...Rxa8!
- threat
- 1.Sdc6?
- threat
- 2.Rxe5#
- 1...Bf4+
- 2.R1xf4#
- 1...Kxd5
- 2.Sd8#
- 2.Rxe5#
- 1...Bxd6
- 2.Qxd4#
- 1...Bh2
- 2.Qxd4#
- 2.Qxh1#
- 1...Bg3
- 2.Qxd4#
- 1...Bf6
- 2.R1f4#
- 1...Bg7
- 2.R1f4#
- 1...Bf3!
- threat
- 1.Sf7?
- threat
- 2.Rxe5#
- 1...Bf4+
- 2.R1xf4#
- 2.R5xf4#
- 1...Bxd6
- 2.Sxd6#
- 1...Bf3
- 2.exf3#
- 1...Bh2
- 2.Qxh1#
- 1...Bf6
- 2.R1f4#
- 2.R5f4#
- 1...Bg7
- 2.R1f4#
- 2.R5f4#
- 1...Bg3!
- threat
- 1.Qxd4+?
- 1...Bxd4
- 2.R1f4#
- 1...Kxd4!
- 1...Bxd4
- 1.Qg3?
- threat
- 2.Rxe5#
- 2.Qxe5#
- 2.Qd3#
- 1...Bf4+
- 2.R1xf4#
- 2.Qxf4#
- 1...Bxd6
- 2.Qd3#
- 1...d3
- 2.Qxe5#
- 2.Qxd3#
- 2.Qe3#
- 1...Ra3
- 2.Rxe5#
- 2.Qxe5#
- 1...Rh3
- 2.Rxe5#
- 2.Qxe5#
- 1...Bf3
- 2.Rxe5#
- 2.Qxe5#
- 2.Qxf3#
- 2.exf3#
- 1...Bf6
- 2.R1f4#
- 2.Qf4#
- 2.Qd3#
- 1...Bg7
- 2.R1f4#
- 2.Qf4#
- 2.Qd3#
- 1...Bxg3!
- threat
- 1.Sb3?
- Keys
- 1.Sdb7!
- threat
- 2.Sc5#
- 1...Bf4+
- 2.R1xf4#
- 1...Kxd5
- 2.Sd8#
- 1...Rxa8
- 2.Qxh1#
- 1...Bxd6
- 2.Sxd6#
- 1...Rc8
- 2.Qxh1#
- threat
- 1.Sdb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- R(h);N_GUARD,XS(N)::QAB(B),XB(a)
- R(h);N_GUARD::QAB(B),XB(a)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);OGATE::P(D),XB(a)
- B(g);S_CUTR(h)::QAB(B),XB(a)
- B(g);CHECK,N_GUARD::R1(A),XB(g)
- B(g);N_GUARD::R1(A)
- Tries
- Try
- S(G);
- Threat
- S(G)
- Vars
- B(g);CHECK,N_GUARD::R1(A),XB(g)
- B(g);N_GUARD,XP(K)::QAR1(B),XP(d)
- Refutation
- R(c);XB(M)
- Try
- S(G);
- Threat
- R1(I),XB(g)
- Vars
- B(g);CHECK,N_GUARD::R1(A),XB(g)
- B(g);N_GUARD,XP(K)::QAR1(B),XP(d)
- B(g);N_GUARD::QAR1(B),XP(d)
- B(g);N_GUARD::R1(A)
- Refutation
- B(a);
- Try
- S(G);
- Threat
- S(G)
- Vars
- B(g);CHECK,N_GUARD::R1(A),XB(g)
- K(e);P_SPINB(g),S_FLIGHT,XP(H)::B(M)+S(G)
- B(g);XP(K)::S(G),XB(g)
- Refutation
- R(c);XB(M)
- Try
- S(N);
- Threat
- R1(I),XB(g)
- Vars
- B(g);CHECK,N_GUARD::R1(A),XB(g)
- B(g);N_GUARD,XP(K)::QAR1(B),XP(d)
- B(g);N_GUARD::QAR1(B),XP(d)
- B(g);N_GUARD::R1(A)
- Refutation
- B(a);
- Try
- S(N);
- Threat
- R1(I),XB(g)
- Vars
- B(g);XP(K)::S(N),XB(g)
- B(a);OGATE::P(D),XB(a)
- B(g);S_CUTR(h)::QAB(B),XB(a)
- Refutation
- B(g);
- Try
- Q(B);CHECK,XP(d)
- Vars
- B(g);SBLOCK,XQ(B)::R1(A)
- Refutation
- K(e);P-FLIGHT,XQ(B)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- B(g);XP(K)::QAB1(B)
- Refutation
- B(g);XQ(B)
- Try
- Actual
- S(N);
- Threat
- S(N)
- Vars
- B(g);CHECK,N_GUARD::R1(A),XB(g)
- K(e);P_SPINB(g),S_FLIGHT,XP(H)::B(M)+S(N)
- R(h);N_GUARD,XB(M)::QAB(B),XB(a)
- B(g);XP(K)::S(N),XB(g)
- R(h);N_GUARD::QAB(B),XB(a)
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