MESON Chess Problem Database
Problem Display
PID: 125396 (RK4k1/pPp5/4Pp1Q/7p/2r5/3p2B1/3P2B1/r5R1 w - - 0 1)
Lobusov, Andrey Jakovlevic
Source?, 1978
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Kxa7#
- 1...Rac1
- 2.Kxa7#
- 1...Rd1
- 2.Kxa7#
- 1...Re1
- 2.Kxa7#
- 1...Rf1
- 2.Kxa7#
- 1...Rxg1
- 2.Kxa7#
- 1...Ra4
- 2.Kxc7#
- 1...Rb4
- 2.Kxc7#
- 1...Re4
- 2.Kxc7#
- 1...Rf4
- 2.Kxc7#
- 1...Rg4
- 2.Kxc7#
- 1...Rh4
- 2.Kxc7#
- 1...a5
- 2.Ka7#
- 1...a6
- 2.Ka7#
- 1...c5
- 2.Kc7#
- 1...c6
- 2.Kc7#
- 1...Rb1
- Tries
- 1.Bf1?
- threat
- 2.Bf4#
- 1...Rxf1
- 2.Kxa7#
- 1...Rf4
- 2.Kxc7#
- 2.Bxf4#
- 1...Rg4
- 2.Kxc7#
- 1...Rh4
- 2.Kxc7#
- 2.Bxh4#
- 1...Rc5
- 2.Be5#
- 1...Ra5!
- threat
- 1.Be4?
- threat
- 2.Be1#
- 1...Rxg1
- 2.Kxa7#
- 1...Rxe4
- 2.Kxc7#
- 1...Re1
- 2.Kxa7#
- 2.Bxe1#
- 1...Rf1
- 2.Kxa7#
- 1...Ra5
- 2.Be5#
- 1...Rc5!
- threat
- 1.Bc6?
- threat
- 2.Kxc7#
- 1...Rxc6
- 2.Be1#
- 1...Rd4!
- threat
- 1.Be1?
- threat
- 2.Be4#
- 1...Rxe1
- 2.Kxa7#
- 1...Re4
- 2.Kxc7#
- 2.Bxe4#
- 1...Rf4
- 2.Kxc7#
- 1...Rg4
- 2.Kxc7#
- 1...Rh4
- 2.Kxc7#
- 1...Rc5
- 2.Bd5#
- 1...Ra5!
- threat
- 1.Bf4?
- threat
- 2.Bf1#
- 1...Rxg1
- 2.Kxa7#
- 1...Rxf4
- 2.Kxc7#
- 1...Rf1
- 2.Kxa7#
- 2.Bxf1#
- 1...Ra5
- 2.Bd5#
- 1...Rc5!
- threat
- 1.Rxa1?
- threat
- 2.Kxa7#
- 1...Ra4
- 2.Kxc7#
- 1...a5
- 2.Ka7#
- 1...a6
- 2.Ka7#
- 1...Rd4!
- threat
- 1.Qg6+?
- 1...Kf8
- 2.Qf7#
- 1...Kh8!
- 1...Kf8
- 1.Qh7+?
- 1...Kf8
- 2.Qf7#
- 1...Kxh7!
- 1...Kf8
- 1.Bf1?
- Keys
- 1.Bd5!
- threat
- 2.e7#
- 1...Rd4
- 2.Kxc7#
- 1...Re1
- 2.Kxa7#
- 1...Ra5
- 2.Bf4#
- 1...Ra6
- 2.Bf4#
- 1...Re4
- 2.Kxc7#
- 1...Rc5
- 2.Be1#
- 1...Rc6
- 2.Be1#
- 1...c6
- 2.Kc7#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 13
- Sets
- R(a);P_PINP(G)::R(H)+K(I),XP(f)
- R(a);::R(H)+K(I),XP(f)
- R(a);XR(A)::R(H)+K(I),XP(f)
- R(c);::R(H)+K(I),XP(g)
- R(c);P_PINP(G)::R(H)+K(I),XP(g)
- P(f);::R(H)+K(I)
- P(g);::R(H)+K(I)
- Tries
- Try
- B(C);
- Threat
- R(A)+B(D)
- Vars
- R(a);XB(C)::R(H)+K(I),XP(f)
- R(c);::R(H)+K(I),XP(g)
- R(c);N_GUARD::R(A)+B(D)
- Refutation
- R(a);
- Try
- B(C);
- Threat
- R(A)+B(D)
- Vars
- R(a);XR(A)::R(H)+K(I),XP(f)
- R(c);XB(C)::R(H)+K(I),XP(g)
- R(a);::R(H)+K(I),XP(f)
- R(a);N_GUARD::R(A)+B(D)
- Refutation
- R(c);
- Try
- B(C);
- Threat
- R(H)+K(I),XP(g)
- Vars
- R(c);N_GUARD,XB(C)::R(A)+B(D)
- Refutation
- R(c);
- Try
- B(D);
- Threat
- R(A)+B(C)
- Vars
- R(a);XB(D)::R(H)+K(I),XP(f)
- R(c);::R(H)+K(I),XP(g)
- R(c);N_GUARD::R(A)+B(C)
- Refutation
- R(a);
- Try
- B(D);
- Threat
- R(A)+B(C)
- Vars
- R(a);XR(A)::R(H)+K(I),XP(f)
- R(c);XB(D)::R(H)+K(I),XP(g)
- R(a);N_GUARD::R(A)+B(C)
- Refutation
- R(c);
- Try
- R(A);XR(a)
- Threat
- R(H)+K(I),XP(f)
- Vars
- R(c);::R(H)+K(I),XP(g)
- P(f);::R(H)+K(I)
- Refutation
- R(c);
- Try
- Q(F);CHECK
- Vars
- K(h);P-FLIGHT::QAR1(F)
- Refutation
- K(h);P-FLIGHT
- Try
- Q(F);CHECK
- Vars
- K(h);P-FLIGHT::QAR1(F)
- Refutation
- K(h);S_FLIGHT,XQ(F)
- Try
- Actual
- B(C);
- Threat
- B(C)+P(E)
- Vars
- R(c);::R(H)+K(I),XP(g)
- R(a);::R(H)+K(I),XP(f)
- R(a);N_GUARD::R(A)+B(D)
- R(c);N_GUARD::R(A)+B(D)
- P(g);::R(H)+K(I)
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