MESON Chess Problem Database

Problem Display
PID: 103805 (8/KBpR1n2/4p3/1pk4r/1p4r1/1P2p3/2bR3b/5Q2 w - - 0 1)

Vaisanen, Kauko

Helsinki Chess Club-110 JT, 1998

8/KBpR1n2/4p3/1pk4r/1p4r1/1P2p3/2bR3b/5Q2

#2

6 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Rxc2#
    • 1...Rg3
      • 2.Rxc2#
      • 2.Rxc7#
    • 1...Rf4
      • 2.Rxc7#
    • 1...Rgg5
      • 2.Rxc2#
    • 1...Rg6
      • 2.Rxc2#
    • 1...Rg7
      • 2.Rxc2#
    • 1...Rg8
      • 2.Rxc2#
    • 1...Re5
      • 2.Rxc7#
    • 1...Bg1
      • 2.Rxc7#
    • 1...Bf4
      • 2.Rxc2#
    • 1...Se5
      • 2.Qf8#
    • 1...Sd6
      • 2.Rxc7#
    • 1...e5
      • 2.R2d5#
      • 2.R7d5#
      • 2.Rxc7#
  • Keys
    • 1.Qf4!
      • threat
        • 2.Rxc2#
        • 2.Rxc7#
      • 1...Rxf4
        • 2.Rxc7#
      • 1...Bxb3
        • 2.Rxc7#
      • 1...Bxf4
        • 2.Rxc2#
      • 1...exd2
        • 2.Rxc7#
      • 1...Rg2
        • 2.Rxc7#
        • 2.Qxe3#
        • 2.Qd4#
      • 1...Bb1
        • 2.Rxc7#
      • 1...Bd1
        • 2.Rxc7#
      • 1...Bd3
        • 2.Rxc7#
      • 1...Be4
        • 2.Qxe3#
      • 1...Bf5
        • 2.Rxc7#
      • 1...Bg6
        • 2.Rxc7#
      • 1...Bh7
        • 2.Rxc7#
      • 1...Se5
        • 2.Qf8#
      • 1...Sd6
        • 2.Rxc7#
      • 1...Sd8
        • 2.Rxc2#
      • 1...c6
        • 2.Rxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 7
  • Sets
    • R(e);N_GUARD::R(B),XB(a)
    • R(e);S_CUTB(b)::R(F),XP(j)
    • R(h);S_CUTB(b)::R(F),XP(j)
    • B(b);N_GUARD::R(F),XP(j)
    • B(b);S_CUTR(e)::R(B),XB(a)
    • S(k);OGATE::QAB(A)
    • S(k);S_CUTB(b)::R(F),XP(j)
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • R(e);XQ(A)::R(F),XP(j)
      • B(a);XP(C)::R(F),XP(j)
      • B(b);XQ(A)::R(B),XB(a)
      • P(c);XR(B)::R(F),XP(j)
      • B(a);::R(F),XP(j)
      • B(a);S_CUTR(e)::QAB(A),XP(c)
      • S(k);OGATE::QAB(A)
      • S(k);::R(F),XP(j)
      • S(k);::R(B),XB(a)
      • P(j);::R(B),XB(a)
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