MESON Chess Problem Database

Problem Display
PID: 261189 (2nRN1nN/3p1p2/K3k2r/6p1/pQ2B2p/r2P4/7B/8 w - - 0 1)

Baumann, Hannes

Neue Zurcher Zeitung, 1977

2nRN1nN/3p1p2/K3k2r/6p1/pQ2B2p/r2P4/7B/8

#2

8 + 10

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Sc7#
      • 2.Sg7#
    • 1...Sb6
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sa7
      • 2.Qd6#
    • 1...Sce7
      • 2.Qd6#
    • 1...Sf6
      • 2.Sc7#
      • 2.Sg7#
    • 1...f6
      • 2.Sc7#
      • 2.Sg7#
  • Tries
    • 1.Bc6?
      • threat
        • 2.Qe4#
      • 1...Kf5
        • 2.Qe4#
      • 1...Sf6
        • 2.Sg7#
      • 1...d5
        • 2.Bd7#
      • 1...f5
        • 2.Qe1#
      • 1...Sd6!
    • 1.Bh7?
      • threat
        • 2.Qe4#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sf6
        • 2.Sc7#
      • 1...d5
        • 2.Qe1#
      • 1...f5
        • 2.Bxg8#
      • 1...Kd5+!
    • 1.Rxc8?
      • threat
        • 2.Qd6#
      • 1...d6
        • 2.Qxd6#
      • 1...Rxd3!
    • 1.Qb5?
      • threat
        • 2.Qxd7#
        • 2.Qe5#
      • 1...Rxd3
        • 2.Qe5#
      • 1...d5
        • 2.Qd7#
      • 1...Sb6
        • 2.Qe5#
      • 1...Sf6
        • 2.Qe5#
      • 1...d6
        • 2.Qd7#
      • 1...f6
        • 2.Qxd7#
      • 1...Ke7+!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Qe4#
      • 1...Kd5
        • 2.Qc4#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sf6
        • 2.Sc7#
      • 1...d5
        • 2.Qe1#
      • 1...f5
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(i);N_GUARD::QAR1(C)
    • S(i);N_GUARD::QAR1(C),XS(i)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR2(C)
      • Vars
        • K(e);P_PINB(D),S_FLIGHT::QAB1(C)
        • S(j);SBLOCK::S(G)
        • P(g);SBLOCK::B(D)
        • P(h);SBLOCK::QAR(C)
      • Refutation
        • S(i);
    • Try
      • B(D);
      • Threat
        • QAR2(C)
      • Vars
        • S(i);N_GUARD::QAR1(C),XS(i)
        • S(j);SBLOCK::S(G)
        • P(g);::QAR(C)
        • P(h);OGATEB,SBLOCK::B(D),XS(j)
      • Refutation
        • K(e);CHECK,P_SPINP(g),S_FLIGHT
    • Try
      • R(F);XS(i)
      • Threat
        • QAR1(C)
      • Vars
        • P(g);::QAR1(C),XP(g)
      • Refutation
        • R(a);XP(B)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XP(B)::QAR1(C)
        • P(g);::QAB1(C)
        • S(i);::QAR1(C)
        • S(j);::QAR1(C)
        • P(h);::QAB1(C),XP(g)
      • Refutation
        • K(e);CHECK,P-FLIGHT
  • Actual
    • B(D);
    • Threat
      • QAR2(C)
    • Vars
      • K(e);N_GUARD,P_PINB(D),P_SPINP(g),S_FLIGHT::QAB1(C)
      • S(i);N_GUARD::QAR1(C),XS(i)
      • S(j);SBLOCK::S(G)
      • P(g);::QAR(C)
      • P(h);SBLOCK::B(D)
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