MESON Chess Problem Database
Problem Display
PID: 261277 (1b3NK1/6pp/2R5/1p1kN3/1B3Q1R/1qP2P2/B2r4/3br3 w - - 0 1)
Bogdanov, Evgeny Mikhailovich
Neue Zurcher Zeitung, 1982
#2
10 + 9
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Qe4#
- 1...Rg1
- 2.Qe4#
- 1...Rh1
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 2.fxe4#
- 1...Rxa2
- 2.Qd4#
- 1...Rb2
- 2.Qd4#
- 1...Rc2
- 2.Bxb3#
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rg2
- 2.Qd4#
- 1...Rh2
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Be2
- 2.Qe4#
- 1...Bxf3
- 2.Bxb3#
- 1...Bd6
- 2.Rxd6#
- 1...Ba7
- 2.Rd6#
- 1...Rf1
- Tries
- 1.Sf7?
- threat
- 2.Rc5#
- 1...Bd6
- 2.Rxd6#
- 2.Qxd6#
- 1...Ba7
- 2.Rd6#
- 2.Qd6#
- 1...Kxc6!
- threat
- 1.Rh5?
- threat
- 2.Qxd2#
- 2.Qf7#
- 1...Qxa2
- 2.Qf7#
- 1...Rxe5
- 2.Qe4#
- 1...Rxa2
- 2.Qd4#
- 2.Qf7#
- 1...Bxf3
- 2.Bxb3#
- 1...Bxe5
- 2.Rd6#
- 1...Ree2
- 2.Qf7#
- 1...Re3
- 2.Qf7#
- 1...Re4
- 2.Qxe4#
- 2.Qf7#
- 2.fxe4#
- 1...Rb2
- 2.Qd4#
- 2.Qf7#
- 1...Rc2
- 2.Bxb3#
- 2.Qd4#
- 2.Qf7#
- 1...Rde2
- 2.Qd4#
- 2.Qf7#
- 1...Rf2
- 2.Qd4#
- 2.Qf7#
- 1...Rg2
- 2.Qd4#
- 2.Qf7#
- 1...Rh2
- 2.Qd4#
- 2.Qf7#
- 1...Rd3
- 2.Qf7#
- 1...Rd4
- 2.Qxd4#
- 2.Qf7#
- 1...Bc2
- 2.Qf7#
- 1...Be2
- 2.Qe4#
- 2.Qf7#
- 1...Ba7
- 2.Rd6#
- 2.Qf7#
- 1...g5!
- threat
- 1.Qe3?
- threat
- 2.Qc5#
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Bd6
- 2.Rxd6#
- 1...Ba7
- 2.Rd6#
- 1...Rxe3!
- threat
- 1.Qf6?
- threat
- 2.Rc5#
- 2.Qe6#
- 1...Rxe5
- 2.Rc5#
- 1...Bd6
- 2.Rxd6#
- 2.Qxd6#
- 2.Qe6#
- 1...Ba7
- 2.Rd6#
- 2.Qd6#
- 2.Qe6#
- 1...gxf6!
- threat
- 1.Sf7?
- Keys
- 1.Rb6!
- threat
- 2.Rxb5#
- 1...Rxe5
- 2.Qxd2#
- 1...Bxe5
- 2.Qf7#
- 1...Be2
- 2.Qe4#
- 1...Bd6
- 2.Rxd6#
- 1...Ba7
- 2.Rd6#
- threat
- 1.Rb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- R(b);N_GUARD::QAB1(E)
- R(c);N_GUARD,N_SPINQ(d),XB(A)::QAR1(E)
- R(c);N_GUARD::QAR1(E)
- R(c);N_GUARD::QAR1(E),XR(c)
- B(a);S_CUTR(b)::QAB1(E)
- B(a);N_GUARD,XP(C)::B(A),XQ(d)
- B(i);N_GUARD::R1(H),XB(i)
- B(i);N_GUARD::R1(H)
- Tries
- Try
- S(G);
- Threat
- R1(H)
- Refutation
- K(f);N_SPINQ(d),P_PINS(G),S_FLIGHT,XR(H)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- Q(d);N_SPINQ(d),XB(A)::QAB(E)
- R(b);N_GUARD,P_SPINR(b),XS(G)::QAB1(E)
- B(a);N_GUARD,XP(C)::B(A),XQ(d)
- B(i);N_GUARD,P_SPINB(i),XS(G)::R1(H)
- R(b);::QAB(E)
- R(c);::QAB(E)
- B(a);::QAB(E)
- Refutation
- P(g);
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- B(i);N_GUARD::R1(H),XB(i)
- B(i);N_GUARD::R1(H)
- Refutation
- R(b);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(b);XS(G)::R1(H)
- Refutation
- P(g);XQ(E)
- Try
- Actual
- R(H);
- Threat
- R(H),XP(e)
- Vars
- R(b);SBLOCK,XS(G)::QAR(E),XR(c)
- B(i);SBLOCK,XS(G)::QAB(E)
- B(a);S_CUTR(b)::QAB1(E)
- B(i);N_GUARD::R1(H),XB(i)
- B(i);N_GUARD::R1(H)
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