MESON Chess Problem Database

Problem Display
PID: 194505 (1B6/8/5P2/3N3K/3PR3/5k2/2Q3pp/5qbr w - - 0 1)

Fomichev, Evgeny Vasilevich

1st Comm., 07. World Cup, 2019

1B6/8/5P2/3N3K/3PR3/5k2/2Q3pp/5qbr

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qe2
      • 2.Qxe2#
    • 1...Qa1
      • 2.Qe2#
    • 1...Qb1
      • 2.Qe2#
    • 1...Qc1
      • 2.Qe2#
    • 1...Be3
      • 2.Rxe3#
  • Tries
    • 1.Bxh2?
      • threat
        • 2.Rf4#
      • 1...Bxh2
        • 2.Re3#
      • 1...Qc1
        • 2.Qe2#
      • 1...Be3
        • 2.Rxe3#
      • 1...Rxh2+!
    • 1.Re2?
      • threat
        • 2.Qe4#
      • 1...Qxe2
        • 2.Qf5#
      • 1...Be3
        • 2.Rxe3#
      • 1...Qb1!
    • 1.Re6?
      • threat
        • 2.Qf5#
      • 1...Qb1
        • 2.Qe2#
      • 1...Qc1
        • 2.Qe2#
      • 1...Be3
        • 2.Rxe3#
      • 1...Qd3!
    • 1.Re7?
      • threat
        • 2.Qf5#
      • 1...Qb1
        • 2.Qe2#
      • 1...Qc1
        • 2.Qe2#
      • 1...Be3
        • 2.Rxe3#
      • 1...Qd3!
    • 1.Re8?
      • threat
        • 2.Qf5#
      • 1...Qb1
        • 2.Qe2#
      • 1...Qc1
        • 2.Qe2#
      • 1...Be3
        • 2.Rxe3#
      • 1...Qd3!
    • 1.Qd3+?
      • 1...Kf2
        • 2.Bg3#
        • 2.Qe3#
        • 2.Qg3#
      • 1...Be3
        • 2.Qxe3#
      • 1...Qxd3!
    • 1.Qd2?
      • threat
        • 2.Qf4#
      • 1...Qc1
        • 2.Qe2#
      • 1...Be3
        • 2.Rxe3#
        • 2.Qxe3#
      • 1...Kxe4!
  • Keys
    • 1.Rg4!
      • threat
        • 2.Rg3#
      • 1...Qe2
        • 2.Qf5#
      • 1...Qd3
        • 2.Qxg2#
      • 1...Qe1
        • 2.Qxg2#
      • 1...Qf2
        • 2.Qe4#
      • 1...Bf2
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • Q(a);N_GUARD::QAB1(A),XQ(a)
    • Q(a);N_GUARD::QAB1(A)
    • B(b);N_GUARD::R1(C),XB(b)
  • Tries
    • Try
      • B(G);P_SPINB(G),XP(e)
      • Threat
        • R1(C)
      • Vars
        • B(b);N_GUARD,XB(G)::R1(C)
        • Q(a);N_GUARD::QAB1(A)
        • B(b);N_GUARD::R1(C),XB(b)
      • Refutation
        • R(c);CHECK,XB(G)
    • Try
      • R(C);
      • Threat
        • QAB1(A)
      • Vars
        • Q(a);SBLOCK,XR(C)::QAR2(A)
        • B(b);N_GUARD::R1(C),XB(b)
      • Refutation
        • Q(a);
    • Try
      • R(C);
      • Threat
        • QAR2(A)
      • Vars
        • Q(a);N_GUARD::QAB1(A)
        • B(b);N_GUARD::R1(C),XB(b)
      • Refutation
        • Q(a);
    • Try
      • R(C);
      • Threat
        • QAR2(A)
      • Vars
        • Q(a);N_GUARD::QAB1(A)
        • B(b);N_GUARD::R1(C),XB(b)
      • Refutation
        • Q(a);
    • Try
      • R(C);
      • Threat
        • QAR2(A)
      • Vars
        • Q(a);N_GUARD::QAB1(A)
        • B(b);N_GUARD::R1(C),XB(b)
      • Refutation
        • Q(a);
    • Try
      • Q(A);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAR1(A),XB(b)
      • Refutation
        • Q(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • Q(a);N_GUARD::QAB1(A)
      • Refutation
        • K(f);S_FLIGHT,XR(C)
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • Q(a);SBLOCK::QAR2(A)
      • Q(a);N_GUARD::QAB1(A),XP(d)
      • Q(a);SBLOCK::QAB1(A)
      • B(b);SBLOCK::QAB1(A)
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