MESON Chess Problem Database

Problem Display
PID: 272356 (4r3/1q3QN1/1n1b4/3R1P2/3NkPp1/6Rn/4B3/5KB1 w - - 0 1)

Permyakov, Evgeni Nikolaevich

Source?, 2012

4r3/1q3QN1/1n1b4/3R1P2/3NkPp1/6Rn/4B3/5KB1

#2

10 + 7

6490 yacpdb 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Rxg4#
    • 1...Bxf4
      • 2.Bd3#
    • 1...Sxf4
      • 2.Re3#
  • Keys
    • 1.Sde6!
      • threat
        • 2.Rd4#
      • 1...Kxd5
        • 2.Qxb7#
      • 1...Qxd5
        • 2.Re3#
      • 1...Bxf4
        • 2.Sc5#
      • 1...Sxf4
        • 2.Sg5#
      • 1...Sxd5
        • 2.Bd3#
      • 1...Bc5
        • 2.Re5#
      • 1...Be5
        • 2.Rxe5#

This is a version of 37523

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(b);OGATEB,P-FLIGHT,XP(F)::R1(D),XP(c)
    • B(e);SBLOCK,XP(F)::B(C)
    • S(a);SBLOCK,XP(F)::R1(D)
  • Actual
    • S(E);
    • Threat
      • R1(G)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(G)::QAB(I),XQ(f)
      • Q(f);SBLOCK,XR(G)::R1(D)
      • B(e);N_GUARD,SBLOCK,XP(F)::S(E)
      • S(a);N_GUARD,SBLOCK,XP(F)::S(E)
      • S(d);SBLOCK,XR(G)::B(C)
      • B(e);N_GUARD::R1(G)
      • B(e);N_GUARD::R1(G),XB(e)
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