MESON Chess Problem Database
Problem Display
PID: 245448 (k1K5/rp6/2P5/8/8/8/8/1R4B1 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Kudesnik, 2011
#2
4 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rxa1#
- 2.cxb7#
- 1...Ra2
- 2.cxb7#
- 1...Ra3
- 2.cxb7#
- 1...Ra4
- 2.cxb7#
- 1...Ra5
- 2.cxb7#
- 1...Ra6
- 2.cxb7#
- 1...bxc6
- 2.Rb8#
- 1...Ra1
- Tries
- 1.Bb6?
- 1...Ra1
- 2.Rxa1#
- 2.cxb7#
- 1...Ra2
- 2.cxb7#
- 1...Ra3
- 2.cxb7#
- 1...Ra4
- 2.cxb7#
- 1...Ra5
- 2.cxb7#
- 1...Ra6
- 2.cxb7#
- 1...bxc6!
- 1...Ra1
- 1.Ra1?
- threat
- 2.Rxa7#
- 2.cxb7#
- 1...Rxa1
- 2.cxb7#
- 1...bxc6
- 2.Rxa7#
- 1...b5
- 2.Rxa7#
- 1...Ra2
- 2.Rxa2#
- 2.cxb7#
- 1...Ra3
- 2.Rxa3#
- 2.cxb7#
- 1...Ra4
- 2.Rxa4#
- 2.cxb7#
- 1...Ra5
- 2.Rxa5#
- 2.cxb7#
- 1...Ra6
- 2.cxb7#
- 1...b6!
- threat
- 1.Rb5?
- 1...bxc6
- 2.Rb8#
- 1...Ra1
- 2.cxb7#
- 1...Ra2
- 2.cxb7#
- 1...Ra3
- 2.cxb7#
- 1...Ra4
- 2.cxb7#
- 1...Ra5
- 2.Rxa5#
- 2.cxb7#
- 1...Ra6
- 2.cxb7#
- 1...b6!
- 1...bxc6
- 1.Bb6?
- Keys
- 1.Rxb7!
- threat
- 2.Rxa7#
- 2.Rb8#
- 1...Rxb7
- 2.cxb7#
- 1...Ra1
- 2.Rb8#
- 1...Ra2
- 2.Rb8#
- 1...Ra3
- 2.Rb8#
- 1...Ra4
- 2.Rb8#
- 1...Ra5
- 2.Rb8#
- 1...Ra6
- 2.Rb8#
- threat
- 1.Rxb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::P(C),XP(b)
- P(b);OGATE,XP(C)::R1(A)
- Tries
- Try
- B(B);
- Vars
- R(a);N_GUARD::P(C),XP(b)
- Refutation
- P(b);XP(C)
- Try
- R(A);P_PINR(a)
- Threat
- DUALS(2)
- Vars
- R(a);N_SPINR(a),XR(A)::P(C),XP(b)
- P(b);XP(C)::R1(A),XR(a)
- P(b);::R1(A),XR(a)
- R(a);::P(C),XP(b)
- Refutation
- P(b);
- Try
- R(A);
- Vars
- P(b);OGATE,XP(C)::R1(A)
- R(a);N_GUARD::P(C),XP(b)
- Refutation
- P(b);
- Try
- Actual
- R(A);XP(b)
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,XR(A)::P(C),XR(a)
- R(a);::R1(A)
Developed and maintained by Brian Stephenson.
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