MESON Chess Problem Database

Problem Display
PID: 239874 (8/8/1p1N4/1P1p4/8/P1kBPp2/1Rp2Np1/n1B3K1 w - - 0 1)

Fomichev, Evgeny Vasilevich

Variantim, 2009

8/8/1p1N4/1P1p4/8/P1kBPp2/1Rp2Np1/n1B3K1

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Rxc2#
    • 1...d4
      • 2.Sde4#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Bd2#
      • 1...Sb3
        • 2.Rxc2#
      • 1...dxc4!
    • 1.Sf5?
      • 1...Sb3
        • 2.Rxc2#
      • 1...d4!
    • 1.Sb7?
      • 1...Sb3
        • 2.Rxc2#
      • 1...d4!
    • 1.Sf7?
      • 1...Sb3
        • 2.Rxc2#
      • 1...d4!
    • 1.Sc8?
      • 1...Sb3
        • 2.Rxc2#
      • 1...d4!
    • 1.Se8?
      • 1...Sb3
        • 2.Rxc2#
      • 1...d4!
    • 1.Bf5?
      • 1...Sb3
        • 2.Rxc2#
      • 1...d4!
    • 1.Bg6?
      • 1...Sb3
        • 2.Rxc2#
      • 1...d4!
    • 1.Bh7?
      • 1...Sb3
        • 2.Rxc2#
      • 1...d4!
    • 1.Rb4?
      • 1...d4
        • 2.Sde4#
      • 1...Sb3!
    • 1.a4?
      • 1...d4
        • 2.Sde4#
      • 1...Sb3!
  • Keys
    • 1.Bc4!
      • 1...dxc4
        • 2.Sde4#
      • 1...d4
        • 2.Sfe4#
      • 1...Sb3
        • 2.Rxb3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,SBLOCK::R1(C),XP(b)
    • P(f);N_GUARD::S(I)
  • Tries
    • Try
      • S(I);
      • Threat
        • B(A)
      • Vars
        • S(a);N_GUARD,SBLOCK::R1(C),XP(b)
      • Refutation
        • P(f);XS(I)
    • Try
      • S(I);
      • Vars
        • S(a);N_GUARD,SBLOCK::R1(C),XP(b)
      • Refutation
        • P(f);
    • Try
      • S(I);
      • Vars
        • S(a);N_GUARD,SBLOCK::R1(C),XP(b)
      • Refutation
        • P(f);
    • Try
      • S(I);
      • Vars
        • S(a);N_GUARD,SBLOCK::R1(C),XP(b)
      • Refutation
        • P(f);
    • Try
      • S(I);
      • Vars
        • S(a);N_GUARD,SBLOCK::R1(C),XP(b)
      • Refutation
        • P(f);
    • Try
      • S(I);
      • Vars
        • S(a);N_GUARD,SBLOCK::R1(C),XP(b)
      • Refutation
        • P(f);
    • Try
      • B(F);
      • Vars
        • S(a);N_GUARD,SBLOCK::R1(C),XP(b)
      • Refutation
        • P(f);
    • Try
      • B(F);
      • Vars
        • S(a);N_GUARD,SBLOCK::R1(C),XP(b)
      • Refutation
        • P(f);
    • Try
      • B(F);
      • Vars
        • S(a);N_GUARD,SBLOCK::R1(C),XP(b)
      • Refutation
        • P(f);
    • Try
      • R(C);
      • Vars
        • P(f);N_GUARD::S(I)
      • Refutation
        • S(a);
    • Try
      • P(E);
      • Vars
        • P(f);N_GUARD::S(I)
      • Refutation
        • S(a);
  • Actual
    • B(F);
    • Vars
      • P(f);N_GUARD,SBLOCK,XB(F)::S(I)
      • P(f);N_GUARD::S(D)
      • S(a);N_GUARD::R1(C),XS(a)
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