MESON Chess Problem Database
Problem Display
PID: 176383 (q2n4/n2P4/b1p2kNP/Q3pBNK/1r4P1/4p3/2PP4/b4R2 w - - 0 1)
Racz, Erich
Schach-Echo, 1972
#2
11 + 10
| 6490 | yacpdb | 2018 |
| 5454 | Near Snap | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qb7
- 2.Qxd8#
- 1...Rb2
- 2.Bd3#
- 2.Qxe5#
- 1...Rb3
- 2.Bd3#
- 1...Rc4
- 2.Be4#
- 1...Rd4
- 2.Qxe5#
- 1...Rb5
- 2.Bd3#
- 2.Be4#
- 2.Be6#
- 1...Rb6
- 2.Bd3#
- 1...Rb7
- 2.Bd3#
- 1...Rb8
- 2.Bd3#
- 1...Bd4
- 2.Bd3#
- 1...Bc4
- 2.Bd3#
- 1...Bb7
- 2.Be4#
- 1...Bc8
- 2.Be4#
- 2.Qxd8#
- 1...Sb5
- 2.Be4#
- 1...Sf7
- 2.Sh7#
- 1...Qb7
- Tries
- 1.Qxb4?
- threat
- 2.Bd3#
- 2.Qe7#
- 1...Bxf1
- 2.Qe7#
- 1...Be2
- 2.Qe7#
- 1...Bd3
- 2.Bxd3#
- 2.Qe7#
- 1...Sc8
- 2.Bd3#
- 1...Se6
- 2.Qe7#
- 1...e2
- 2.Qe7#
- 1...e4
- 2.Qe7#
- 1...c5!
- threat
- 1.Qd5?
- threat
- 2.Sh7#
- 1...Se6
- 2.Qxe6#
- 1...cxd5!
- threat
- 1.c4?
- threat
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 2.Be4#
- 2.Be6#
- 1...Rxc4
- 2.Be4#
- 1...Bxc4
- 2.Bd3#
- 1...Rb1
- 2.Bxb1#
- 1...Se6
- 2.Bxe6#
- 1...e4
- 2.Bxe4#
- 2.Be6#
- 1...c5
- 2.Be4#
- 1...e2!
- threat
- 1.d4?
- threat
- 2.Bd3#
- 2.Qxe5#
- 1...Rxd4
- 2.Qxe5#
- 1...Bxd4
- 2.Bd3#
- 1...Bxf1
- 2.Qxe5#
- 1...exd4
- 2.Bd3#
- 2.Qe5#
- 1...Qb8
- 2.Bd3#
- 1...Rb1
- 2.Qxe5#
- 1...Rb5
- 2.Bd3#
- 2.Be4#
- 2.Be6#
- 1...Be2
- 2.Qxe5#
- 1...Bd3
- 2.Bxd3#
- 2.Qxe5#
- 1...Bb5
- 2.Bd3#
- 1...Sb5
- 2.Bd3#
- 2.Be4#
- 2.Be6#
- 1...Se6
- 2.Qxe5#
- 1...Sf7
- 2.Se4#
- 2.Sh7#
- 2.Bd3#
- 1...e2
- 2.Qxe5#
- 1...e4
- 2.Qe5#
- 1...c5!
- threat
- 1.Qxb4?
- Keys
- 1.Qa2!
- threat
- 2.Sh7#
- 1...Rb3
- 2.Bd3#
- 1...Rc4
- 2.Be4#
- 1...Bc4
- 2.Bd3#
- 1...Se6
- 2.Qxe6#
- threat
- 1.Qa2!
This anticipates 87742(1973)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- Q(i);N_GUARD::QAB(E),XS(j)
- R(c);N_GUARD::R(A)+B(F)
- R(c);S_CUTB(e)::R(A)+B(F)
- R(c);S_CUTB(a)::QAB1(E),XP(d)
- B(a);S_CUTR(c)::R(A)+B(F)
- B(e);S_CUTR(c)::R(A)+B(F)
- B(e);N_GUARD::R(A)+B(F)
- S(h);S_CUTB(e)::R(A)+B(F)
- S(j);SBLOCK::S(G)
- Tries
- Try
- Q(E);XR(c)
- Threat
- DUALS(2)
- Vars
- B(e);XR(A)::QAB1(E)
- B(e);P_PINP(D)::QAB1(E)
- S(h);::R(A)+B(F)
- S(j);::QAB1(E)
- P(b);::QAB1(E)
- P(d);::QAB1(E)
- Refutation
- P(f);
- Try
- Q(E);
- Threat
- S(G)
- Vars
- S(j);N_GUARD::QAR1(E),XS(j)
- Refutation
- P(f);XQ(E)
- Try
- P(B);
- Threat
- DUALS(5)
- Vars
- R(c);XP(B)::R(A)+B(F)
- B(e);XP(B)::R(A)+B(F)
- R(c);::R(A)+B(F),XR(c)
- S(j);::R(A)+B(F),XS(j)
- P(f);::R(A)+B(F)
- Refutation
- P(b);
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- R(c);XP(C)::QAB1(E),XP(d)
- B(a);XP(C)::R(A)+B(F)
- B(e);XR(A)::QAB1(E),XP(d)
- Q(i);::R(A)+B(F)
- R(c);::QAB1(E),XP(d)
- B(e);P_PINP(D)::QAB1(E),XP(d)
- B(e);::R(A)+B(F)
- S(j);::QAB1(E),XP(d)
- P(b);::QAB1(E),XP(d)
- P(d);::QAB1(E)
- Refutation
- P(f);
- Try
- Actual
- Q(E);
- Threat
- S(G)
- Vars
- R(c);N_GUARD::R(A)+B(F)
- R(c);S_CUTB(e)::R(A)+B(F)
- B(e);S_CUTR(c)::R(A)+B(F)
- S(j);N_GUARD::QAR1(E),XS(j)
Developed and maintained by Brian Stephenson.
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