MESON Chess Problem Database
Problem Display
PID: 276512 (8/1pn1Kp2/n2B1N2/1pR5/1Npkp2p/4p3/r2PP3/1BR1Q3 w - - 0 1)
Antonov, Yuri Mikhailovich
Melnichenko, Viktor Oleksandrovich
Mat, 1981
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Ra3
- 2.Sc2#
- 1...Ra4
- 2.Sc2#
- 1...Ra5
- 2.Sc2#
- 1...Sd5+
- 2.Rxd5#
- 1...Se6
- 2.Rd5#
- 1...Sa8
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...exd2
- 2.e3#
- 1...c3
- 2.dxc3#
- 1...b6
- 2.Sc6#
- 1...Ra1
- Tries
- 1.Sg4?
- threat
- 2.dxe3#
- 1...Sd5+
- 2.Rxd5#
- 1...exd2
- 2.e3#
- 1...Ra3
- 2.Sc2#
- 1...Rxd2!
- threat
- 1.Sfd5?
- threat
- 2.dxe3#
- 1...Sxd5+
- 2.Rxd5#
- 1...exd2
- 2.e3#
- 1...Ra3
- 2.Sc2#
- 1...Rxd2!
- threat
- 1.Sd7?
- threat
- 2.Be5#
- 1...Sd5+
- 2.Rxd5#
- 1...exd2
- 2.e3#
- 1...f6!
- threat
- 1.Bxa2?
- threat
- 2.Sc2#
- 1...Sd5+
- 2.Rxd5#
- 1...exd2
- 2.Qxd2#
- 2.e3#
- 1...Sxb4!
- threat
- 1.Re5?
- threat
- 2.Rxe4#
- 1...Sd5+
- 2.Rxd5#
- 1...Sc5!
- threat
- 1.Qf2?
- threat
- 2.Qxe3#
- 2.dxe3#
- 1...Sd5+
- 2.Rxd5#
- 1...exf2
- 2.e3#
- 1...Rc2
- 2.Sxc2#
- 2.Qxe3#
- 1...Ra3
- 2.Sc2#
- 1...Rxd2!
- threat
- 1.Qg3?
- threat
- 2.Qe5#
- 2.Qxe3#
- 2.dxe3#
- 1...Sd5+
- 2.Rxd5#
- 1...Rxd2
- 2.Qe5#
- 1...exd2
- 2.Qc3#
- 2.e3#
- 1...Rc2
- 2.Sxc2#
- 2.Qe5#
- 2.Qxe3#
- 1...Ra3
- 2.Sc2#
- 2.Qe5#
- 1...hxg3!
- threat
- 1.Qxh4?
- threat
- 2.Qxe4#
- 1...Sd5+
- 2.Rxd5#
- 1...Sxc5!
- threat
- 1.Qg1?
- threat
- 2.Qxe3#
- 2.dxe3#
- 1...Sd5+
- 2.Rxd5#
- 1...Rc2
- 2.Sxc2#
- 2.Qxe3#
- 1...Ra3
- 2.Sc2#
- 1...Rxd2!
- threat
- 1.Qh1?
- threat
- 2.Qxe4#
- 1...Sd5+
- 2.Rxd5#
- 1...Sxc5!
- threat
- 1.d3?
- threat
- 2.Qc3#
- 1...Sd5+
- 2.Rxd5#
- 1...Rc2
- 2.Sxc2#
- 1...Ra3
- 2.Sc2#
- 1...c3
- 2.Qxc3#
- 1...Rd2!
- threat
- 1.Sg4?
- Keys
- 1.Sd3!
- threat
- 2.Be5#
- 1...Sd5+
- 2.Rxd5#
- 1...exd2
- 2.e3#
- 1...exd3
- 2.Qxh4#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- R(a);N_GUARD::S(F)
- R(a);N_GUARD::S(F),XR(a)
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- S(j);N_GUARD::R1(G)
- P(b);OGATE,XP(D)::P(E)
- P(c);OGATE::P(D),XP(c)
- P(i);N_GUARD::S(F)
- Tries
- Try
- S(I);
- Threat
- P(D),XP(b)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- P(b);OGATE,XP(D)::P(E)
- R(a);N_GUARD::S(F)
- Refutation
- R(a);XP(D)
- Try
- S(I);
- Threat
- P(D),XP(b)
- Vars
- S(j);CHECK,OGATE,XS(I)::R1(G),XS(j)
- P(b);OGATE,XP(D)::P(E)
- R(a);N_GUARD::S(F)
- Refutation
- R(a);XP(D)
- Try
- S(I);
- Threat
- B(H)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- P(b);OGATE,XP(D)::P(E)
- Refutation
- P(k);
- Try
- B(A);XR(a)
- Threat
- S(F)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- Refutation
- S(h);XS(F)
- Try
- R(G);
- Threat
- R1(G),XP(e)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- Refutation
- S(h);
- Try
- Q(C);P_PINP(b)
- Threat
- DUALS(2)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- P(b);N_SPINP(b),OGATE,XQ(C)::P(E)
- R(a);N_GUARD::S(F)
- Refutation
- R(a);XP(D)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- R(a);XP(D)::QAB1(C)
- Refutation
- P(f);XQ(C)
- Try
- Q(C);P_PINP(e),XP(f)
- Threat
- QAR1(C),XP(e)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- Refutation
- S(h);XR(G)
- Try
- Q(C);P_PINP(b)
- Threat
- DUALS(2)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- R(a);N_GUARD::S(F)
- Refutation
- R(a);XP(D)
- Try
- Q(C);
- Threat
- QAR1(C),XP(e)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- Refutation
- S(h);XR(G)
- Try
- P(D);
- Threat
- QAB1(C)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- R(a);N_GUARD::S(F),XR(a)
- R(a);N_GUARD::S(F)
- P(c);::QAB1(C),XP(c)
- Refutation
- R(a);
- Try
- Actual
- S(F);
- Threat
- B(H)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- P(b);OGATE,XP(D)::P(E)
- P(e);OGATEB,XS(F)::QAR(C),XP(f)
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