MESON Chess Problem Database

Problem Display
PID: 260754 (n3N3/5B2/P1PPp3/1QpkpR2/p6b/p1P5/2KN1P1p/8 w - - 0 1)

Fomichev, Evgeny Vasilevich

Neue Zurcher Zeitung, 2006

n3N3/5B2/P1PPp3/1QpkpR2/p6b/p1P5/2KN1P1p/8

#2

11 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4?
      • threat
        • 2.Rxe5#
      • 1...Bg3
        • 2.Sf6#
      • 1...Bf6
        • 2.Sxf6#
      • 1...Ke4!
    • 1.Rf3?
      • threat
        • 2.Rd3#
      • 1...e4
        • 2.Rf5#
      • 1...Bxf2!
    • 1.Qf1?
      • threat
        • 2.Qg2#
        • 2.Qh1#
      • 1...c4
        • 2.Qxc4#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1S
        • 2.Qg2#
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qg2#
        • 2.Qxh1#
      • 1...Kxc6!
    • 1.Qb3+?
      • 1...Kxc6
        • 2.Qb7#
      • 1...c4
        • 2.Qxc4#
        • 2.Qb5#
      • 1...axb3+!
    • 1.Qb7?
      • threat
        • 2.c7#
      • 1...c4
        • 2.Qb5#
      • 1...Sc7!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qh1#
      • 1...Kxc6
        • 2.Qb7#
      • 1...c4
        • 2.Qb5#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1S
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qxh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • R1(F),XP(g)
      • Vars
        • B(d);N_GUARD::S(K)
        • B(d);N_GUARD::S(K),XB(d)
      • Refutation
        • K(f);N_SPINP(e),S_FLIGHT
    • Try
      • R(F);
      • Threat
        • R(F)
      • Vars
        • P(g);OGATEB::R(F)
      • Refutation
        • B(d);XP(C)
    • Try
      • Q(E);N_PINP(e),P_PINP(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::QAB1(E),XP(e)
        • P(a);::QAB(E),XQ(a)
        • P(a);::QAB(E),XB(a)
      • Refutation
        • K(f);N_SPINP(g),S_FLIGHT,XP(H)
    • Try
      • Q(E);CHECK,N_PINP(e),P_PINP(g)
      • Vars
        • K(f);N_SPINP(g),OGATEB,S_FLIGHT,XP(H)::QAB1(E)
      • Refutation
        • P(c);CHECK,XQ(E)
    • Try
      • Q(E);N_PINP(e),P_PINP(g)
      • Threat
        • QAB(E)+P(H)
      • Vars
        • P(e);OGATEB::QAR2(E)
      • Refutation
        • S(i);
  • Actual
    • Q(E);N_PINP(e),P_PINP(g)
    • Threat
      • QAB(E)
    • Vars
      • K(f);N_SPINP(g),OGATEB,S_FLIGHT,XP(H)::QAB1(E)
      • P(e);OGATEB::QAR2(E)
      • P(a);::QAB(E),XQ(a)
      • P(a);::QAB(E),XS(a)
      • P(a);::QAB(E),XB(a)
      • P(a);::QAB(E),XR(a)
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