MESON Chess Problem Database

Problem Display
PID: 260888 (3Br3/8/2br4/K1N5/pRPk3P/p2N3R/3QP3/8 w - - 0 1)

Kochli, Klaus

Comm., Neue Zurcher Zeitung, 2011

3Br3/8/2br4/K1N5/pRPk3P/p2N3R/3QP3/8

#2

10 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd8
      • 2.e3#
    • 1...Rf8
      • 2.e3#
    • 1...Rg8
      • 2.e3#
    • 1...Rh8
      • 2.e3#
    • 1...Be4
      • 2.e3#
    • 1...a2
      • 2.Qb2#
  • Tries
    • 1.Sc1+?
      • 1...Kxc5
        • 2.Bb6#
      • 1...Ke5!
    • 1.Se1+?
      • 1...Kxc5
        • 2.Bb6#
      • 1...Ke5!
    • 1.Sb2+?
      • 1...Kxc5
        • 2.Bb6#
      • 1...Ke5!
    • 1.Sf2+?
      • 1...Kxc5
        • 2.Bb6#
      • 1...Ke5!
    • 1.Sf4+?
      • 1...Kxc5
        • 2.Bb6#
      • 1...Ke5!
    • 1.Se5+?
      • 1...Kxc5
        • 2.Bb6#
      • 1...Kxe5!
    • 1.Sb3+?
      • 1...Ke4
        • 2.Qf4#
      • 1...axb3!
    • 1.Bf6+?
      • 1...Re5
        • 2.Bxe5#
        • 2.e3#
      • 1...Rxf6!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qe3#
      • 1...Rd5+
        • 2.c5#
      • 1...Re5+
        • 2.Sdc5#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Rxe4
        • 2.Bb6#
      • 1...Bxe4
        • 2.e3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • R(f);N_GUARD,XB(J)::P(B)
    • R(f);N_GUARD::P(B)
    • B(d);S_CUTR(f)::P(B)
    • P(a);N_GUARD::QAB(A)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XS(I)::B(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XS(I)::B(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XS(I)::B(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XS(I)::B(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XS(I)::B(J)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XS(I)::B(J)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • S(I);CHECK
      • Vars
        • K(c);N_GUARD,P-FLIGHT::QAR1(A)
      • Refutation
        • P(b);XS(I)
    • Try
      • B(J);CHECK
      • Refutation
        • R(e);XB(J)
  • Actual
    • S(I);
    • Threat
      • QAB1(A)
    • Vars
      • R(e);CHECK,SBLOCK::R(E)+P(F)
      • R(f);CHECK,SBLOCK::QAR(A)+S(C)
      • K(c);OGATEB,P-FLIGHT,XS(I)::QAR1(A)
      • R(f);SBLOCK,XS(I)::B(J)
      • B(d);SBLOCK,XS(I)::P(B)
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