MESON Chess Problem Database
Problem Display
PID: 261489 (3RQ3/1pKN4/3p1P2/B1Rp4/2Pk2P1/3Pnp2/5P2/2N2n2 w - - 0 1)
Mayer, Ioan Hansi
Neue Zurcher Zeitung, 1976
#2
12 + 7
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Qxe3#
- 2.fxe3#
- 1...Sh2
- 2.Qxe3#
- 2.fxe3#
- 1...Sg3
- 2.Qxe3#
- 2.fxe3#
- 1...Sd1
- 2.Rxd5#
- 1...Sc2
- 2.Rxd5#
- 1...Sg2
- 2.Rxd5#
- 1...Sxg4
- 2.Rxd5#
- 1...Sf5
- 2.Rxd5#
- 1...dxc4
- 2.Qe4#
- 1...dxc5
- 2.Qe5#
- 1...Sd2
- Tries
- 1.Kb6?
- 1...Sxg4
- 2.Rxd5#
- 1...dxc4
- 2.Qe4#
- 1...dxc5
- 2.Qe5#
- 1...Sd2
- 2.Qxe3#
- 2.fxe3#
- 1...Sh2
- 2.Qxe3#
- 2.fxe3#
- 1...Sg3
- 2.Qxe3#
- 2.fxe3#
- 1...Sd1
- 2.Rxd5#
- 1...Sc2
- 2.Rxd5#
- 1...Sg2
- 2.Rxd5#
- 1...Sf5
- 2.Rxd5#
- 1...Sxc4+!
- 1...Sxg4
- 1.Kxb7?
- 1...Sxg4
- 2.Rxd5#
- 1...dxc4
- 2.Qe4#
- 1...dxc5
- 2.Qe5#
- 1...Sd2
- 2.Qxe3#
- 2.fxe3#
- 1...Sh2
- 2.Qxe3#
- 2.fxe3#
- 1...Sg3
- 2.Qxe3#
- 2.fxe3#
- 1...Sd1
- 2.Rxd5#
- 1...Sc2
- 2.Rxd5#
- 1...Sg2
- 2.Rxd5#
- 1...Sf5
- 2.Rxd5#
- 1...Sxc4!
- 1...Sxg4
- 1.Qg6?
- threat
- 2.Sb3#
- 1...dxc4
- 2.Qe4#
- 1...Sf5
- 2.Rxd5#
- 1...Sd2!
- threat
- 1.Qh8?
- threat
- 2.f7#
- 1...Sxg4
- 2.Rxd5#
- 1...Sf5
- 2.Rxd5#
- 1...Sxc4!
- threat
- 1.cxd5?
- threat
- 2.Bc3#
- 2.Qe4#
- 1...dxc5
- 2.Qe4#
- 2.Qe5#
- 1...Sd2
- 2.Bc3#
- 2.Qxe3#
- 2.fxe3#
- 1...Sg3
- 2.Bc3#
- 2.Qxe3#
- 2.fxe3#
- 1...Sd1
- 2.Qe4#
- 1...Sc4
- 2.Qe4#
- 1...Sxd5+!
- threat
- 1.f7?
- threat
- 2.Qh8#
- 1...Sxg4
- 2.Rxd5#
- 1...Sf5
- 2.Rxd5#
- 1...Sxc4!
- threat
- 1.Kb6?
- Keys
- 1.Sb6!
- 1...Kxc5
- 2.Sb3#
- 1...Sxc4
- 2.Rxd5#
- 1...Sxg4
- 2.Rxd5#
- 1...dxc4
- 2.Qe5#
- 1...dxc5
- 2.Qe4#
- 1...Sd2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Sg3
- 2.Qxe3#
- 1...Sd1
- 2.Rxd5#
- 1...Sc2
- 2.Rxd5#
- 1...Sg2
- 2.Rxd5#
- 1...Sf5
- 2.Rxd5#
- 1...Kxc5
- 1.Sb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::R1(G),XP(e)
- S(b);N_GUARD,XP(E)::R1(G),XP(e)
- P(e);N_GUARD,XP(D)::QAR1(L)
- P(f);N_GUARD,XR(G)::QAB1(L)
- Tries
- Try
- K(I);S_FLIGHT
- Vars
- S(b);N_GUARD,XP(E)::R1(G),XP(e)
- P(e);N_GUARD,XP(D)::QAR1(L)
- P(f);N_GUARD,XR(G)::QAB1(L)
- S(b);N_GUARD::R1(G),XP(e)
- Refutation
- S(b);CHECK,XP(D)
- Try
- K(I);P-FLIGHT,XP(g)
- Vars
- S(b);N_GUARD,XP(E)::R1(G),XP(e)
- P(e);N_GUARD,XP(D)::QAR1(L)
- P(f);N_GUARD,XR(G)::QAB1(L)
- S(b);N_GUARD::R1(G),XP(e)
- Refutation
- S(b);XP(D)
- Try
- Q(L);
- Threat
- S(A)
- Vars
- P(e);N_GUARD,XP(D)::QAR1(L)
- S(b);N_GUARD::R1(G),XP(e)
- Refutation
- S(a);
- Try
- Q(L);
- Threat
- QAB(L)+P(H)
- Vars
- S(b);N_GUARD,XP(E)::R1(G),XP(e)
- S(b);N_GUARD::R1(G),XP(e)
- Refutation
- S(b);XP(D)
- Try
- P(D);XP(e)
- Threat
- DUALS(2)
- Vars
- S(b);::QAR1(L)
- Refutation
- S(b);CHECK,XP(D)
- Try
- P(H);
- Threat
- QAB(L)
- Vars
- S(b);N_GUARD,XP(E)::R1(G),XP(e)
- S(b);N_GUARD::R1(G),XP(e)
- Refutation
- S(b);XP(D)
- Try
- Actual
- S(J);
- Vars
- K(d);N_GUARD,S_FLIGHT,XR(G)::S(A)
- S(b);N_GUARD,XP(D)::R1(G),XP(e)
- S(b);N_GUARD,XP(E)::R1(G),XP(e)
- P(e);P_SPINP(f),XP(D)::QAB1(L)
- P(f);P_SPINP(e),SBLOCK,XR(G)::QAR1(L)
- S(a);N_GUARD::QAB1(L),XS(b)
- S(b);N_GUARD::R1(G),XP(e)
Developed and maintained by Brian Stephenson.
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