MESON Chess Problem Database

Problem Display
PID: 172330 (8/8/8/8/7p/4KQ1b/7r/3Bk3 w - - 0 1)

Andreev, Aleksandr Grigorevich

Vecherni Krasnodar, 1996

8/8/8/8/7p/4KQ1b/7r/3Bk3

#2

3 + 4

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qe2#
    • 1...Re2+
      • 2.Qxe2#
    • 1...Bg2
      • 2.Qe2#
  • Keys
    • 1.Be2!
      • 1...Rxe2+
        • 2.Qxe2#
      • 1...Rh1
        • 2.Qf2#
      • 1...Rf2
        • 2.Qxf2#
      • 1...Rg2
        • 2.Qf1#
      • 1...Bf1
        • 2.Qxf1#
      • 1...Bg2
        • 2.Qf2#
      • 1...Bg4
        • 2.Qf1#
      • 1...Bf5
        • 2.Qf1#
      • 1...Be6
        • 2.Qf1#
      • 1...Bd7
        • 2.Qf1#
      • 1...Bc8
        • 2.Qf1#

Anticipated by 87931(1964)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD::QAR1(C)
    • R(b);CHECK,N_GUARD::QAR1(C),XR(b)
    • B(c);S_CUTR(b)::QAR1(C)
  • Actual
    • B(A);
    • Vars
      • R(b);CHECK,OGATE,XB(A)::QAR1(C),XR(b)
      • R(b);N_GUARD::QAB1(C)
      • R(b);N_GUARD::QAB1(C),XR(b)
      • R(b);S_CUTB(c)::QAR1(C)
      • B(c);N_GUARD::QAR1(C),XB(c)
      • B(c);S_CUTR(b)::QAB1(C)
      • B(c);N_GUARD::QAR1(C)
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