MESON Chess Problem Database

Problem Display
PID: 244502 (7B/8/8/5N2/5k1K/3Q4/8/5r1b w - - 0 1)

Fomichev, Evgeny Vasilevich

1st Prize, Melnichuk-50 JT, 2007

7B/8/8/5N2/5k1K/3Q4/8/5r1b

#2

4 + 3

5454 Near Snap 2021
15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sd4?
      • threat
        • 2.Se2#
        • 2.Se6#
      • 1...Rf2
        • 2.Se6#
      • 1...Bf3
        • 2.Se6#
      • 1...Be4
        • 2.Qd2#
        • 2.Qg3#
      • 1...Bd5
        • 2.Se2#
      • 1...Re1!
    • 1.Sd6?
      • threat
        • 2.Qg3#
      • 1...Rf3
        • 2.Qe4#
        • 2.Qd4#
      • 1...Bf3
        • 2.Qd2#
      • 1...Rg1!
    • 1.Se7?
      • threat
        • 2.Sg6#
      • 1...Be4
        • 2.Qg3#
      • 1...Rg1!
    • 1.Sg7?
      • threat
        • 2.Sh5#
        • 2.Se6#
      • 1...Re1
        • 2.Sh5#
      • 1...Bf3
        • 2.Se6#
      • 1...Be4
        • 2.Qg3#
      • 1...Bd5
        • 2.Sh5#
      • 1...Ke5!
    • 1.Qe2?
      • threat
        • 2.Qg4#
      • 1...Kxf5
        • 2.Qg4#
      • 1...Rf3
        • 2.Qe5#
      • 1...Bf3
        • 2.Qe5#
      • 1...Rg1!
    • 1.Qg3+?
      • 1...Kxf5
        • 2.Qg4#
      • 1...Ke4!
  • Keys
    • 1.Sg3!
      • threat
        • 2.Se2#
        • 2.Sh5#
      • 1...Re1
        • 2.Sh5#
      • 1...Rf2
        • 2.Sh5#
      • 1...Bf3
        • 2.Qd2#
      • 1...Be4
        • 2.Qxe4#

This anticipates 246049(2017)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::S(C)
        • B(b);::S(C)
      • Refutation
        • R(a);
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • B(b);SBLOCK::QAB(A)
      • Refutation
        • R(a);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • B(b);SBLOCK::QAB1(A)
      • Refutation
        • R(a);
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::S(C)
        • B(b);::S(C)
        • B(b);SBLOCK::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(c);P-FLIGHT,XS(C)::QAB1(A)
        • R(a);SBLOCK::QAB1(A)
        • B(b);SBLOCK::QAB1(A)
      • Refutation
        • R(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • R(a);::S(C)
      • B(b);SBLOCK::QAB(A)
      • B(b);N_GUARD::QAR1(A),XB(b)
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