MESON Chess Problem Database

Problem Display
PID: 180778 (8/7b/8/2p5/2Pb1B2/NpPkP3/1PN2Q1K/8 w - - 0 1)

Klipachev, Vladimir Panteleevich

Sachmatija, 2017

8/7b/8/2p5/2Pb1B2/NpPkP3/1PN2Q1K/8

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3
      • 2.Qxe3#
    • 1...Be4
      • 2.Se1#
    • 1...bxc2
      • 2.Qxc2#
  • Tries
    • 1.Qf1+?
      • 1...Kd2
        • 2.exd4#
      • 1...Ke4!
    • 1.Qg2?
      • threat
        • 2.Se1#
      • 1...bxc2
        • 2.Qxc2#
      • 1...Bxc3!
    • 1.exd4?
      • threat
        • 2.Qe3#
        • 2.Qf3#
      • 1...cxd4
        • 2.Qf3#
      • 1...Be4
        • 2.Se1#
        • 2.Qe3#
        • 2.Qf1#
        • 2.Qd2#
      • 1...Ke4!
  • Keys
    • 1.Qf3!
      • threat
        • 2.exd4#
      • 1...Kd2
        • 2.exd4#
      • 1...Bxc3
        • 2.e4#
      • 1...Bxe3
        • 2.Qxe3#
      • 1...Be5
        • 2.e4#
      • 1...Bf6
        • 2.e4#
      • 1...Bg7
        • 2.e4#
      • 1...Bh8
        • 2.e4#
      • 1...Be4
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(c);OGATE,XP(G)::QAR1(C),XB(c)
    • B(e);SBLOCK::S(B)
    • P(a);OGATE,XS(B)::QAB1(C),XP(a)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::B(I)+P(G),XB(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • S(B)
      • Vars
        • P(a);OGATE,XS(B)::QAB1(C),XP(a)
      • Refutation
        • B(c);XP(F)
    • Try
      • P(G);XB(c)
      • Threat
        • DUALS(2)
      • Vars
        • P(d);XP(G)::QAR2(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR(C)+P(G),XB(c)
    • Vars
      • K(b);P-FLIGHT::B(I)+P(G),XB(c)
      • B(c);N_GUARD,XP(F)::QAR(C)+P(G)
      • B(c);OGATE,P_SPINB(c),XP(G)::QAR1(C),XB(c)
      • B(c);N_GUARD,P_PINB(I)::QAR(C)+P(G)
      • B(c);N_GUARD::QAR(C)+P(G)
      • B(e);SBLOCK::QAR2(C)
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