MESON Chess Problem Database

Problem Display
PID: 165895 (6K1/8/8/1NQR4/3pP3/3P1B2/3k1B2/1b6 w - - 0 1)

Fomichev, Evgeny Vasilevich

Die Schwalbe, 2017

6K1/8/8/1NQR4/3pP3/3P1B2/3k1B2/1b6

#2

8 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Rxd4#
      • 2.Qc3#
  • Tries
    • 1.Sa3?
      • 1...Kxd3
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...Bc2
        • 2.Qxc2#
      • 1...Ba2
        • 2.Qc2#
      • 1...Bxd3!
    • 1.Be3+?
      • 1...Ke1
        • 2.Qc1#
      • 1...Kxd3
        • 2.Qc3#
      • 1...dxe3
        • 2.Qc3#
      • 1...Kxe3!
    • 1.Bxd4?
      • threat
        • 2.Qc3#
      • 1...Ke1
        • 2.Qc1#
      • 1...Kxd3
        • 2.Ba1#
        • 2.Bg1#
        • 2.Bb2#
        • 2.Bf2#
        • 2.Be3#
        • 2.Be5#
        • 2.Bf6#
        • 2.Bg7#
        • 2.Bh8#
        • 2.Qc3#
      • 1...Bc2!
    • 1.Rxd4?
      • threat
        • 2.Qc3#
      • 1...Bc2
        • 2.Qg5#
      • 1...Ba2+!
    • 1.Qxd4?
      • threat
        • 2.Qc3#
      • 1...Kc2
        • 2.Qc3#
      • 1...Bc2
        • 2.Qe3#
      • 1...Kc1!
    • 1.Qc1+?
      • 1...Kxd3
        • 2.Rxd4#
        • 2.Qc3#
      • 1...Kxc1!
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Sb3#
      • 1...Kxd3
        • 2.Sc2#
        • 2.Se2#
        • 2.Sb3#
        • 2.Sb5#
        • 2.Sf5#
        • 2.Sc6#
        • 2.Se6#
      • 1...Bc2
        • 2.Qxc2#
      • 1...Ba2
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Vars
        • B(a);N_GUARD::QAR1(F),XB(a)
        • B(a);N_GUARD,P_PINR(G)::QAR1(F)
      • Refutation
        • B(a);XP(B)
    • Try
      • B(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(F)
        • K(b);P-FLIGHT,P_SPINP(c),XP(B)::QAR1(F)
        • P(c);SBLOCK,XB(A)::QAB1(F)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT,XB(A)
    • Try
      • B(A);XP(c)
      • Threat
        • QAB1(F)
      • Vars
        • K(b);S_FLIGHT::QAR2(F)
      • Refutation
        • B(a);
    • Try
      • R(G);XP(c)
      • Threat
        • QAB1(F)
      • Vars
        • B(a);SBLOCK::QAB(F)
      • Refutation
        • B(a);CHECK
    • Try
      • Q(F);XP(c)
      • Threat
        • QAB1(F)
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
        • B(a);SBLOCK::QAB1(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(F)
  • Actual
    • S(E);XP(c)
    • Threat
      • S(E)
    • Vars
      • B(a);N_GUARD::QAR1(F),XB(a)
      • B(a);N_GUARD,P_PINR(G)::QAR1(F)
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