MESON Chess Problem Database

Problem Display
PID: 6033 (8/b2p4/K1p5/2k1P3/2p2N2/N1B1P3/r7/2Q5 w - - 0 1)

Fuchs, Georges Matthieu

La Strategie, 1926

8/b2p4/K1p5/2k1P3/2p2N2/N1B1P3/r7/2Q5

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa3+
      • 2.Qxa3#
    • 1...d5
      • 2.Se6#
  • Tries
    • 1.Ka5?
      • threat
        • 2.Bb4#
        • 2.Bd4#
      • 1...Rxa3+
        • 2.Qxa3#
      • 1...Rb2
        • 2.Bd4#
      • 1...Rd2
        • 2.Bb4#
      • 1...Bb6+!
    • 1.Be1?
      • threat
        • 2.Qxc4#
      • 1...Rxa3+
        • 2.Qxa3#
      • 1...c3
        • 2.Qxc3#
      • 1...d5
        • 2.Sd3#
        • 2.Se6#
      • 1...Rc2!
    • 1.Bd2?
      • threat
        • 2.Qxc4#
      • 1...Rxa3+
        • 2.Qxa3#
      • 1...c3
        • 2.Qxc3#
      • 1...d5
        • 2.Sd3#
        • 2.Se6#
      • 1...Rc2!
    • 1.Ba5?
      • threat
        • 2.Qxc4#
      • 1...Rxa3
        • 2.Qxa3#
      • 1...c3
        • 2.Qxc3#
      • 1...d5
        • 2.Sd3#
        • 2.Se6#
      • 1...Rc2!
    • 1.Qb2?
      • threat
        • 2.Bb4#
        • 2.Bd4#
        • 2.Qb4#
      • 1...Rxa3+
        • 2.Qxa3#
      • 1...Rxb2!
  • Keys
    • 1.Bb2!
      • threat
        • 2.Qxc4#
      • 1...Rxa3+
        • 2.Bxa3#
      • 1...Kb4
        • 2.Qxc4#
      • 1...c3
        • 2.Qxc3#
      • 1...d5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);CHECK,OGATE,XS(B)::QAB(A),XR(a)
    • P(f);N_GUARD,SBLOCK::S(E)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(a);CHECK,OGATE,XS(B)::QAB(A),XR(a)
        • R(a);N_PINS(B)::B(C)
      • Refutation
        • B(e);CHECK
    • Try
      • B(C);P_PINP(b)
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • R(a);CHECK,OGATE,XS(B)::QAB(A),XR(a)
        • P(b);OGATEB::QAR2(A),XP(b)
      • Refutation
        • R(a);N_PINS(B),N_SPINP(b)
    • Try
      • B(C);P_PINP(b)
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • R(a);CHECK,OGATE,XS(B)::QAB(A),XR(a)
        • P(b);OGATEB::QAR2(A),XP(b)
      • Refutation
        • R(a);N_PINS(B),N_SPINP(b)
    • Try
      • B(C);N_SPINS(B),P_PINP(b)
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • R(a);OGATE,P_PINB(C),XS(B)::QAB(A),XR(a)
        • P(b);OGATEB::QAR2(A),XP(b)
      • Refutation
        • R(a);N_SPINP(b)
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • R(a);CHECK,OGATE,XS(B)::QAB(A),XR(a)
      • Refutation
        • R(a);N_PINS(B),XQ(A)
  • Actual
    • B(C);P_PINP(b)
    • Threat
      • QAR1(A),XP(b)
    • Vars
      • R(a);CHECK,OGATE,XS(B)::B(C),XR(a)
      • K(c);N_SPINP(b),S_FLIGHT::QAR1(A),XP(b)
      • P(b);OGATEB::QAR2(A),XP(b)
      • P(f);SBLOCK::S(E)
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