MESON Chess Problem Database

Problem Display
PID: 171308 (3K1Q2/8/4rR2/4k3/3Rr3/8/8/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Za Ogneypori, 1989

3K1Q2/8/4rR2/4k3/3Rr3/8/8/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6+
      • 2.Qxd6#
  • Keys
    • 1.Rd6!
      • threat
        • 2.Rf5#
        • 2.Rfxe6#
      • 1...Rxd6+
        • 2.Qxd6#
      • 1...Re8+
        • 2.Qxe8#
      • 1...Rxf6
        • 2.Qxf6#
      • 1...Re1
        • 2.Rfxe6#
      • 1...Re2
        • 2.Rfxe6#
      • 1...Re3
        • 2.Rfxe6#
      • 1...Ra4
        • 2.Rfxe6#
      • 1...Rb4
        • 2.Rfxe6#
      • 1...Rc4
        • 2.Rfxe6#
      • 1...Rd4
        • 2.Rxe6#
      • 1...Rf4
        • 2.Rfxe6#
      • 1...Rg4
        • 2.Rfxe6#
      • 1...Rh4
        • 2.Rfxe6#
      • 1...Re7
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
    • R(c);CHECK,N_GUARD::QAB1(D),XR(c)
  • Actual
    • R(A);
    • Threat
      • DUALS(2)
    • Vars
      • R(c);CHECK,OGATE,XR(A)::QAB1(D),XR(c)
      • R(c);CHECK,OGATEB::QAR(D),XR(c)
      • R(c);OGATE,XR(B)::QAB1(D),XR(c)
      • R(a);::R1(B),XR(c)
      • R(a);P_PINR(A)::R1(B),XR(c)
      • R(c);OGATEB::QAR2(D),XR(c)
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