MESON Chess Problem Database

Problem Display
PID: 77695 (8/3p1p1P/3p1p2/3p1kN1/2pP4/6K1/4B1Q1/4R1BR w - - 0 1)

Markov, Evgeny Viktorovich

StrateGems, 2007

8/3p1p1P/3p1p2/3p1kN1/2pP4/6K1/4B1Q1/4R1BR

#2

9 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Sh3?
      • 1...Ke6
        • 2.Bd3#
        • 2.Bg4#
      • 1...c3
        • 2.Bd3#
      • 1...Kg6!
    • 1.Bd3+?
      • 1...Kxg5
        • 2.Kf3#
        • 2.Be3#
        • 2.Qd2#
      • 1...cxd3!
    • 1.Bh5?
      • threat
        • 2.Qxd5#
      • 1...fxg5
        • 2.Qf1#
        • 2.Qf3#
        • 2.Qf2#
      • 1...Kxg5!
    • 1.Qf3+?
      • 1...Kxg5
        • 2.Qg4#
        • 2.Qh5#
      • 1...Kg6!
    • 1.Qh3+?
      • 1...Kxg5
        • 2.Qg4#
        • 2.Qh5#
      • 1...Kg6!
    • 1.Qe4+?
      • 1...Kxg5
        • 2.Be3#
        • 2.Rh5#
        • 2.Qg4#
      • 1...dxe4!
    • 1.h8S?
      • threat
        • 2.Qxd5#
      • 1...Kxg5
        • 2.Rh5#
      • 1...fxg5!
  • Keys
    • 1.Sf3!
      • 1...Ke4
        • 2.Sh4#
      • 1...Ke6
        • 2.Bd3#
      • 1...Kg6
        • 2.Kf4#
      • 1...c3
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);
      • Vars
        • P(a);N_GUARD::B(D)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(D);CHECK
      • Refutation
        • P(a);XB(D)
    • Try
      • B(D);
      • Threat
        • QAR2(E),XP(b)
      • Refutation
        • K(c);P-FLIGHT,XS(H)
    • Try
      • Q(E);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • P(b);XQ(E)
    • Try
      • P(I);
      • Threat
        • QAR2(E),XP(b)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XS(H)::R1(C)
      • Refutation
        • P(e);XS(H)
  • Actual
    • S(H);
    • Vars
      • K(c);S_FLIGHT::QAB(E)+S(H)
      • K(c);S_FLIGHT::R(A)+B(D)
      • K(c);S_FLIGHT::QAR(E)+K(F)
      • P(a);N_GUARD::B(D)
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