MESON Chess Problem Database

Problem Display
PID: 246702 (k7/6r1/K1Pb4/8/8/8/1Q6/1R6 w - - 0 1)

Pilchenko, Viacheslav Karlovich

Magadanskaya Pravda, 1998

k7/6r1/K1Pb4/8/8/8/1Q6/1R6

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qb7#
    • 1...Rg2
      • 2.Qb7#
    • 1...Rg3
      • 2.Qb7#
    • 1...Rg4
      • 2.Qb7#
    • 1...Rg5
      • 2.Qb7#
    • 1...Rg6
      • 2.Qb7#
    • 1...Rb7
      • 2.Qxb7#
    • 1...Rc7
      • 2.Qb8#
    • 1...Rg8
      • 2.Qb7#
    • 1...Ba3
      • 2.Qb8#
    • 1...Bc5
      • 2.Qb8#
    • 1...Bc7
      • 2.Qb7#
    • 1...Be7
      • 2.Qb7#
      • 2.Qb8#
    • 1...Bb8
      • 2.Qxb8#
    • 1...Bf8
      • 2.Qb8#
  • Keys
    • 1.c7!
      • threat
        • 2.Qb7#
        • 2.Qb8#
      • 1...Rxc7
        • 2.Qb8#
      • 1...Bxc7
        • 2.Qb7#
      • 1...Rg8
        • 2.Qb7#
      • 1...Bb4
        • 2.c8Q#
        • 2.c8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • R(b);N_GUARD::QAB1(B)
    • R(b);N_GUARD::QAB1(B),XR(b)
    • R(b);S_CUTB(a)::QAR1(B)
    • B(a);N_GUARD::QAR1(B)
    • B(a);S_CUTR(b)::QAB1(B)
    • B(a);N_GUARD::QAR1(B),XB(a)
  • Actual
    • P(D);
    • Threat
      • DUALS(2)
    • Vars
      • R(b);XP(D)::QAR1(B)
      • B(a);XP(D)::QAB1(B)
      • R(b);::QAB1(B)
      • B(a);N_GUARD::P=Q
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