MESON Chess Problem Database

Problem Display
PID: 173910 (nK2QR2/8/3p4/1N1k2b1/1P4N1/1n3r2/4B3/1b6 w - - 0 1)

Gosman, Gheorghe H

Flacara Sibiului, 1966

nK2QR2/8/3p4/1N1k2b1/1P4N1/1n3r2/4B3/1b6

#2

7 + 7

15202 Componist 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Se3#
    • 1...Bf4
      • 2.Sf6#
  • Tries
    • 1.Bxf3+?
      • 1...Be4
        • 2.Qxe4#
      • 1...Kc4!
    • 1.Qc6+?
      • 1...Ke6
        • 2.Qxd6#
      • 1...Kxc6!
    • 1.Qf7+?
      • 1...Ke4
        • 2.Qe6#
        • 2.Qxf3#
      • 1...Kc6
        • 2.Qb7#
      • 1...Rxf7!
    • 1.Qe5+?
      • 1...Kc6
        • 2.Qxd6#
      • 1...dxe5!
    • 1.Qe6+?
      • 1...Kc6
        • 2.Qxd6#
      • 1...Kxe6!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Bc4#
      • 1...Rxf4
        • 2.Se3#
      • 1...Bxf4
        • 2.Sf6#
      • 1...Rc3
        • 2.Sxc3#
      • 1...Rd3
        • 2.Qe4#
      • 1...Bd3
        • 2.Sc3#
      • 1...Be4
        • 2.Qxe4#
      • 1...Sd2
        • 2.Rd4#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sa5
        • 2.Rd4#
      • 1...Sb6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,S_CUTB(e)::S(C)
    • B(e);N_GUARD,S_CUTR(c)::S(C)
  • Tries
    • Try
      • B(A);CHECK,XR(c)
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAB1(F),XB(a)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);P_SPINP(f),S_FLIGHT::QAR1(F),XP(f)
      • Refutation
        • K(d);S_FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(F)
      • Refutation
        • R(c);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(F),XP(f)
      • Refutation
        • P(f);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);P_SPINP(f),S_FLIGHT::QAR1(F),XP(f)
      • Refutation
        • K(d);S_FLIGHT,XQ(F)
  • Actual
    • R(G);
    • Threat
      • B(A)
    • Vars
      • R(c);N_GUARD,XR(G)::S(C)
      • B(e);N_GUARD,XR(G)::S(C)
      • R(c);N_GUARD::S(D),XR(c)
      • R(c);S_CUTB(a)::QAB1(F)
      • B(a);S_CUTR(c)::S(D)
      • B(a);N_GUARD::QAB1(F),XB(a)
      • S(b);N_GUARD::R1(G)
      • S(b);N_GUARD::R1(G),XS(b)
      • S(g);N_GUARD::S(D)
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