MESON Chess Problem Database

Problem Display
PID: 267252 (8/2N2p2/1Kp2p2/2Qpkp2/1p6/bB3p1N/8/8 w - - 0 1)

Ivanov, Vadim Aleksandrovich

3rd HM., Shakhmatnaya kompozitsiya, 2002

8/2N2p2/1Kp2p2/2Qpkp2/1p6/bB3p1N/8/8

#2

5 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Kxc6?
      • threat
        • 2.Qe3#
        • 2.Qxd5#
      • 1...f4
        • 2.Qxd5#
      • 1...Bc1
        • 2.Qxd5#
      • 1...Ke4!
    • 1.Sb5?
      • threat
        • 2.Qe3#
        • 2.Qe7#
      • 1...Ke4
        • 2.Qd4#
      • 1...Ke6
        • 2.Qd6#
      • 1...cxb5
        • 2.Qxd5#
      • 1...Bc1
        • 2.Qe7#
      • 1...f4!
    • 1.Bxd5?
      • threat
        • 2.Bxf3#
        • 2.Bxc6#
      • 1...cxd5
        • 2.Qxd5#
      • 1...f2
        • 2.Bh1#
        • 2.Bg2#
        • 2.Bf3#
        • 2.Bxc6#
      • 1...b3!
  • Keys
    • 1.Sxd5!
      • threat
        • 2.Sc3#
      • 1...Ke4
        • 2.Qe3#
      • 1...Ke6
        • 2.Qe7#
      • 1...cxd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT,XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(f);::QAR1(C),XP(d)
        • B(a);::QAR1(C),XP(d)
      • Refutation
        • K(e);N_SPINP(d),P-FLIGHT
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(e);N_GUARD,N_SPINP(d),P-FLIGHT::QAR1(C)
        • K(e);N_GUARD,P-FLIGHT::QAR1(C)
        • P(g);N_GUARD,XS(E)::QAR1(C),XP(d)
        • B(a);::QAR2(C)
      • Refutation
        • P(f);
    • Try
      • B(A);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • P(g);OGATE,P_SPINP(g),XB(A)::QAR1(C),XP(g)
      • Refutation
        • P(c);
  • Actual
    • S(E);XP(d)
    • Threat
      • QAR(C)+S(E)
    • Vars
      • K(e);N_GUARD,P-FLIGHT::QAR1(C)
      • P(g);OGATE,P_SPINP(g),XS(E)::QAR1(C),XP(g)
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