MESON Chess Problem Database

Problem Display
PID: 153290 (1n2Q3/5P2/1p5B/7B/2P1N2p/P2kP1p1/K1Rq1pP1/N2Rbb2 w - - 0 1)

Evdokimov, Valery Antolovich

3rd HM., Wola Gulowska, 1988

1n2Q3/5P2/1p5B/7B/2P1N2p/P2kP1p1/K1Rq1pP1/N2Rbb2

#2

13 + 9

15345 Wola Gulowska Award 1988

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Sc5#
  • Tries
    • 1.Sxd2?
      • threat
        • 2.Qe4#
      • 1...Bxd2
        • 2.Rdxd2#
      • 1...Bxg2!
    • 1.Sxf2+?
      • 1...Bxf2
        • 2.Rdxd2#
      • 1...gxf2!
    • 1.Sxg3?
      • threat
        • 2.Bg6#
        • 2.Qe4#
      • 1...Bxg2
        • 2.Be2#
      • 1...hxg3!
    • 1.Bg6?
      • threat
        • 2.Sxg3#
      • 1...Ke2
        • 2.Sc3#
      • 1...Bxg2!
    • 1.Rcxd2+?
      • 1...Kxc4
        • 2.Rc1#
        • 2.Rd4#
        • 2.Qa4#
      • 1...Bxd2!
    • 1.Qb5?
      • threat
        • 2.Qd5#
      • 1...Kxe4
        • 2.Bg6#
      • 1...Sc6!
    • 1.Qh8?
      • threat
        • 2.Qd4#
      • 1...Kxe4
        • 2.Bg6#
      • 1...Sc6!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qe4#
      • 1...Kxc4
        • 2.Qb5#
      • 1...Bxg2
        • 2.Be2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(h);N_GUARD::S(I)
  • Tries
    • Try
      • S(I);N_SPINR(D),XQ(c)
      • Threat
        • QAB1(M)
      • Vars
        • B(a);OGATE,P_SPINB(a),XS(I)::R1(B),XB(a)
      • Refutation
        • B(b);XP(E)
    • Try
      • S(I);CHECK,XP(d)
      • Vars
        • B(a);XS(I)::R1(B),XQ(c)
      • Refutation
        • P(f);XS(I)
    • Try
      • S(I);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);N_GUARD,XP(E)::B(J)
      • Refutation
        • P(g);XS(I)
    • Try
      • B(J);
      • Threat
        • B(J)+S(I),XP(f)
      • Vars
        • K(e);S_FLIGHT::S(I)
      • Refutation
        • B(b);XP(E)
    • Try
      • R(D);CHECK,N_SPINR(D),XQ(c)
      • Refutation
        • B(a);P_SPINB(a),XR(D)
    • Try
      • Q(M);
      • Threat
        • QAR2(M)
      • Vars
        • K(e);N_SPINQ(c),OGATEB,S_FLIGHT,XS(I)::B(J)
      • Refutation
        • S(i);
    • Try
      • Q(M);
      • Threat
        • QAR1(M)
      • Vars
        • K(e);N_SPINQ(c),OGATEB,S_FLIGHT,XS(I)::B(J)
      • Refutation
        • S(i);
  • Actual
    • S(I);
    • Threat
      • QAB1(M)
    • Vars
      • K(e);N_SPINQ(c),OGATEB,S_FLIGHT,XP(H)::QAB1(M)
      • B(b);N_GUARD,XP(E)::B(J)
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