MESON Chess Problem Database

Problem Display
PID: 177919 (8/2K5/2p5/pRpR4/p1k5/P1N2P2/5r2/BB2Nb2 w - - 0 1)

Spirin, E

Sahs (Latvia), 1982

8/2K5/2p5/pRpR4/p1k5/P1N2P2/5r2/BB2Nb2

#2

9 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Bxa2#
    • 1...Re2
      • 2.Bd3#
    • 1...Rxf3
      • 2.Ba2#
    • 1...Be2
      • 2.Ba2#
    • 1...Bg2
      • 2.Bd3#
    • 1...Bd3
      • 2.Bxd3#
    • 1...Bh3
      • 2.Bd3#
  • Keys
    • 1.Se2!
      • threat
        • 2.Rdxc5#
      • 1...Kxb5
        • 2.Bd3#
      • 1...Kxd5
        • 2.Ba2#
      • 1...cxb5
        • 2.Ba2#
      • 1...cxd5
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(b);N_GUARD::B(B),XR(b)
    • R(b);S_CUTB(a)::B(B)
    • R(b);N_GUARD,XP(F)::B(B)
    • B(a);S_CUTR(b)::B(B)
    • B(a);N_GUARD::B(B)
    • B(a);N_GUARD::B(B),XB(a)
  • Actual
    • S(E);
    • Threat
      • R1(H),XP(f)
    • Vars
      • K(d);P_SPINP(f),S_FLIGHT,XR(G)::B(B)
      • K(d);P_SPINP(f),S_FLIGHT,XR(H)::B(B)
      • P(g);SBLOCK,XR(G)::B(B)
      • P(g);SBLOCK,XR(H)::B(B)
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