MESON Chess Problem Database

Problem Display
PID: 36355 (8/5BNb/8/1pB2Ppp/4k3/n1R1P1Q1/7p/3KR3 w - - 0 1)

Kisis, Imants J

Shakhmaty v SSSR, 1975

8/5BNb/8/1pB2Ppp/4k3/n1R1P1Q1/7p/3KR3

#2

9 + 7

3771 FIDE Album (1974-1976) 1980

SOLUTION

  • SOUND
  • Sets
    • 1...g4
      • 2.Qf4#
  • Tries
    • 1.Se8?
      • threat
        • 2.Sd6#
      • 1...Kxf5
        • 2.e4#
      • 1...Sc4!
    • 1.Be8?
      • threat
        • 2.Bc6#
      • 1...Kd5
        • 2.e4#
      • 1...Bg8!
    • 1.Rd3?
      • threat
        • 2.Rd4#
      • 1...Kxd3
        • 2.e4#
      • 1...Sc2!
    • 1.Qd6?
      • threat
        • 2.Bd5#
        • 2.Qd5#
      • 1...Bg8
        • 2.Qd5#
      • 1...Kf3!
    • 1.Qg4+?
      • 1...Ke5
        • 2.Qd4#
      • 1...hxg4!
  • Keys
    • 1.Qxg5!
      • threat
        • 2.Qf4#
      • 1...Kf3
        • 2.e4#
      • 1...Ke5
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(e);N_GUARD::QAR1(E)
  • Tries
    • Try
      • S(I);
      • Threat
        • S(I)
      • Vars
        • K(c);OGATE,S_FLIGHT,XP(G)::P(D)
      • Refutation
        • S(b);
    • Try
      • B(H);
      • Threat
        • B(H)
      • Vars
        • K(c);OGATE,S_FLIGHT::P(D)
      • Refutation
        • B(g);
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • K(c);OGATE,S_FLIGHT,XR(C)::QAR(E)+P(D)
      • Refutation
        • S(b);
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);::QAB1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAB1(E)
      • Refutation
        • P(f);XQ(E)
  • Actual
    • Q(E);XP(e)
    • Threat
      • QAR1(E)
    • Vars
      • K(c);OGATE,S_FLIGHT::R(C)+P(D)
      • K(c);P-FLIGHT::QAR2(E)
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