MESON Chess Problem Database
Problem Display
PID: 46673 (8/4nKp1/1rpQ1P2/Np1P2r1/1P1k2nR/3p1PP1/3R4/b1BN4 w - - 0 1)
Ivanov, Vadim Aleksandrovich
The Problemist, 2003
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Rxg4#
- 2.Qf4#
- 1...Re5
- 2.Qc5#
- 1...Rh5
- 2.Rxg4#
- 1...Bb2
- 2.Bxb2#
- 1...cxd5
- 2.Qf4#
- 1...Rxd5
- Tries
- 1.Ke6?
- threat
- 2.Qf4#
- 2.Qc5#
- 1...Re5+
- 2.Qxe5#
- 1...Rxd5
- 2.Rxg4#
- 2.Qf4#
- 1...Sxd5
- 2.Qc5#
- 1...cxd5
- 2.Qxb6#
- 1...Rf5
- 2.Qc5#
- 1...Sg6
- 2.Qc5#
- 1...c5!
- threat
- 1.Sb2?
- threat
- 2.Rxd3#
- 1...Kc3
- 2.Qc5#
- 1...Ke3
- 2.Qf4#
- 1...Bxb2!
- threat
- 1.Ra2?
- threat
- 2.Be3#
- 1...d2
- 2.Rxd2#
- 1...Re5
- 2.Qc5#
- 1...Sf5!
- threat
- 1.Rb2?
- threat
- 2.Be3#
- 1...d2
- 2.Rxd2#
- 1...Re5
- 2.Qc5#
- 1...Sf5!
- threat
- 1.Rc2?
- threat
- 2.Sb3#
- 2.Be3#
- 1...d2
- 2.Rxd2#
- 1...Sf5
- 2.Sb3#
- 1...Re5
- 2.Sb3#
- 2.Qc5#
- 1...Bc3
- 2.Be3#
- 1...dxc2!
- threat
- 1.Re2?
- threat
- 2.Be3#
- 2.Re4#
- 2.Qc5#
- 1...Rxd5
- 2.Be3#
- 2.Re4#
- 2.Rxg4#
- 2.Qf4#
- 1...d2
- 2.Rxd2#
- 1...Sf5
- 2.Re4#
- 2.Qc5#
- 2.Qe5#
- 1...Re5
- 2.Qc5#
- 2.Qxe5#
- 1...c5
- 2.Be3#
- 2.Re4#
- 2.Qxc5#
- 1...dxe2!
- threat
- 1.Rf2?
- threat
- 2.Be3#
- 1...d2
- 2.Rxd2#
- 1...Re5
- 2.Qc5#
- 1...Sf5!
- threat
- 1.Rg2?
- threat
- 2.Be3#
- 1...d2
- 2.Rxd2#
- 1...Re5
- 2.Qc5#
- 1...Sf5!
- threat
- 1.Rdh2?
- threat
- 2.Be3#
- 1...d2
- 2.Rxd2#
- 1...Re5
- 2.Qc5#
- 1...Sf5!
- threat
- 1.Qxe7?
- threat
- 2.Qe4#
- 1...Kxd5
- 2.Qc5#
- 1...cxd5
- 2.Qe3#
- 1...Re5
- 2.Qc5#
- 1...Rb7!
- threat
- 1.Qe6?
- threat
- 2.Qe4#
- 1...cxd5
- 2.Qe3#
- 1...Re5!
- threat
- 1.dxc6+?
- 1...Rd5
- 2.Rxg4#
- 2.Qf4#
- 1...Sd5!
- 1...Rd5
- 1.Ke6?
- Keys
- 1.Sf2!
- threat
- 2.Rxd3#
- 1...Kc3
- 2.Qc5#
- 1...Ke3
- 2.Qf4#
- threat
- 1.Sf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(f);SBLOCK::QAB1(J)
- R(f);N_GUARD::R(G),XS(d)
- B(a);N_GUARD::B(A),XB(a)
- P(h);SBLOCK,XP(I)::QAR2(J)
- Tries
- Try
- K(L);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(f);CHECK,N_GUARD::QAB1(J),XR(f)
- S(i);XP(I)::QAB1(J)
- P(h);OGATE,P_PINQ(J),XP(I)::QAB(J),XR(g)
- R(f);::QAB1(J)
- S(i);::QAB1(J)
- Refutation
- P(h);P_PINQ(J)
- Try
- S(B);
- Threat
- R1(C),XP(b)
- Vars
- K(c);N_SPINP(b),N_SPINS(d),S_FLIGHT::QAR2(J)
- K(c);N_SPINP(b),N_SPINS(d),S_FLIGHT::QAB1(J)
- Refutation
- B(a);XS(B)
- Try
- R(C);N_PINP(b)
- Threat
- B(A)
- Vars
- P(b);OGATEB::R(C),XP(b)
- R(f);SBLOCK::QAB1(J)
- Refutation
- S(i);
- Try
- R(C);N_PINP(b)
- Threat
- B(A)
- Vars
- P(b);OGATEB::R(C),XP(b)
- R(f);SBLOCK::QAB1(J)
- Refutation
- S(i);
- Try
- R(C);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- P(b);OGATEB::R(C),XP(b)
- S(i);::S(H)
- B(a);::B(A)
- Refutation
- P(b);XR(C)
- Try
- R(C);N_PINP(b)
- Threat
- DUALS(3)
- Vars
- P(b);OGATEB::R(C),XP(b)
- Refutation
- P(b);XR(C)
- Try
- R(C);N_PINP(b)
- Threat
- B(A)
- Vars
- P(b);OGATEB::R(C),XP(b)
- R(f);SBLOCK::QAB1(J)
- Refutation
- S(i);
- Try
- R(C);N_PINP(b)
- Threat
- B(A)
- Vars
- P(b);OGATEB::R(C),XP(b)
- R(f);SBLOCK::QAB1(J)
- Refutation
- S(i);
- Try
- R(C);N_PINP(b)
- Threat
- B(A)
- Vars
- P(b);OGATEB::R(C),XP(b)
- R(f);SBLOCK::QAB1(J)
- Refutation
- S(i);
- Try
- Q(J);XS(i)
- Threat
- QAR1(J)
- Vars
- K(c);N_SPINS(d),P-FLIGHT,XP(I)::QAR1(J)
- P(h);SBLOCK,XP(I)::QAB1(J)
- R(f);SBLOCK::QAB1(J)
- Refutation
- R(g);P_PINQ(J)
- Try
- Q(J);
- Threat
- QAR1(J)
- Vars
- P(h);SBLOCK,XP(I)::QAB1(J)
- Refutation
- R(f);
- Try
- P(I);CHECK,XP(h)
- Refutation
- S(i);
- Try
- Actual
- S(B);
- Threat
- R1(C),XP(b)
- Vars
- K(c);N_SPINP(b),N_SPINS(d),S_FLIGHT::QAR2(J)
- K(c);N_SPINP(b),N_SPINS(d),S_FLIGHT::QAB1(J)
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