MESON Chess Problem Database

Problem Display
PID: 3192 (8/B6N/2K5/3Ppp2/2p2k2/2Rb1B1Q/8/4br2 w - - 0 1)

Zelepukhin, Nikolai Pavlovich

3rd HM., Source?, 1964

8/B6N/2K5/3Ppp2/2p2k2/2Rb1B1Q/8/4br2

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Be3#
    • 1...Bc2
      • 2.Be3#
    • 1...Be2
      • 2.Be3#
    • 1...Be4
      • 2.Be3#
  • Tries
    • 1.Bg2?
      • threat
        • 2.Be3#
      • 1...Rf3
        • 2.Qxf3#
      • 1...e4
        • 2.Bb8#
      • 1...Bd2
        • 2.Qh4#
      • 1...Bf2
        • 2.Qf3#
      • 1...Bg3!
    • 1.Bh5?
      • threat
        • 2.Qe3#
      • 1...Ke4
        • 2.Qe3#
      • 1...Rf3
        • 2.Qxf3#
      • 1...Bd2
        • 2.Qh4#
      • 1...Bf2
        • 2.Qf3#
      • 1...e4
        • 2.Bb8#
      • 1...Bg3!
  • Keys
    • 1.Be4!
      • 1...Kxe4
        • 2.Qe3#
      • 1...Bxc3
        • 2.Qh4#
      • 1...Bxe4
        • 2.Be3#
      • 1...fxe4
        • 2.Be3#
      • 1...Bg3
        • 2.Qxf5#
      • 1...Rg1
        • 2.Qf3#
      • 1...Rh1
        • 2.Qf3#
      • 1...Rf2
        • 2.Qh4#
      • 1...Rf3
        • 2.Qxf3#
      • 1...Bd2
        • 2.Qh4#
      • 1...Bf2
        • 2.Qf3#
      • 1...Bh4
        • 2.Qxh4#
      • 1...Bb1
        • 2.Qxf5#
      • 1...Bc2
        • 2.Qxf5#
      • 1...Be2
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • B(c);::B(F)
    • B(c);P_PINP(D)::B(F)
  • Tries
    • Try
      • B(B);
      • Threat
        • B(F)
      • Vars
        • R(b);N_GUARD::QAR1(C),XR(b)
        • P(f);OGATEB::B(F)
        • B(a);N_GUARD::QAR2(C)
        • B(a);S_CUTR(b)::QAR1(C)
      • Refutation
        • B(a);
    • Try
      • B(B);
      • Threat
        • QAB1(C)
      • Vars
        • K(e);P-FLIGHT::QAR1(C)
        • R(b);N_GUARD::QAR1(C),XR(b)
        • B(a);N_GUARD::QAR2(C)
        • B(a);S_CUTR(b)::QAR1(C)
        • P(f);OGATEB,SBLOCK::B(F)
      • Refutation
        • B(a);
  • Actual
    • B(B);
    • Vars
      • K(e);P-FLIGHT,XB(B)::QAR1(C)
      • B(a);N_GUARD,XR(A)::QAR2(C)
      • B(c);P_PINP(D),SBLOCK,XB(B)::B(F)
      • P(g);SBLOCK,XB(B)::B(F)
      • B(a);SBLOCK::QAR1(C),XP(g)
      • R(b);N_GUARD::QAR1(C)
      • R(b);S_CUTB(a)::QAR2(C)
      • R(b);N_GUARD::QAR1(C),XR(b)
      • B(a);N_GUARD::QAR2(C)
      • B(a);S_CUTR(b)::QAR1(C)
      • B(a);N_GUARD::QAR2(C),XB(a)
      • B(c);::QAR1(C),XP(g)
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