MESON Chess Problem Database

Problem Display
PID: 66780 (7n/4p3/pK2Nkp1/R1pQN1p1/1Pp3P1/p7/B7/8 w - - 0 1)

Fomichev, Evgeny Vasilevich

Gorbatenko, Yuri Grigorevich

4th Prize, Bron MT, 2000

7n/4p3/pK2Nkp1/R1pQN1p1/1Pp3P1/p7/B7/8

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sf7
      • 2.Sd7#
  • Tries
    • 1.Kxc5?
      • 1...Sf7
        • 2.Sd7#
      • 1...c3!
    • 1.Bxc4?
      • 1...cxb4
        • 2.Qf3#
      • 1...Sf7
        • 2.Sd7#
      • 1...a2!
    • 1.Rxc5?
      • 1...c3
        • 2.Qf3#
      • 1...Sf7
        • 2.Sd7#
      • 1...a5!
    • 1.Qxc5?
      • 1...Kxe6
        • 2.Qc6#
      • 1...c3
        • 2.Qf2#
      • 1...Sf7!
    • 1.bxc5?
      • 1...Sf7
        • 2.Sd7#
      • 1...c3!
  • Keys
    • 1.Qxc4!
      • 1...Kxe5
        • 2.Qd4#
      • 1...cxb4
        • 2.Qf1#
      • 1...Sf7
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(i);SBLOCK::S(F)
  • Tries
    • Try
      • K(G);S_FLIGHT,XP(c)
      • Vars
        • S(i);SBLOCK::S(F)
      • Refutation
        • P(b);
    • Try
      • B(A);XP(b)
      • Vars
        • P(c);XP(B)::QAR(E)
        • S(i);SBLOCK::S(F)
      • Refutation
        • P(a);
    • Try
      • R(D);XP(c)
      • Vars
        • P(b);::QAR(E)
        • S(i);SBLOCK::S(F)
      • Refutation
        • P(e);
    • Try
      • Q(E);XP(c)
      • Vars
        • K(f);OGATEB,P-FLIGHT,P_SPINP(b),XS(H)::QAR2(E)
        • P(b);::QAR(E)
      • Refutation
        • S(i);
    • Try
      • P(B);XP(c)
      • Vars
        • S(i);SBLOCK::S(F)
      • Refutation
        • P(b);
  • Actual
    • Q(E);XP(b)
    • Vars
      • K(f);OGATEB,P_SPINP(c),S_FLIGHT,XS(F)::QAB1(E)
      • P(c);XP(B)::QAR(E)
      • S(i);SBLOCK::S(F)
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