MESON Chess Problem Database

Problem Display
PID: 101673 (4rn1B/b6R/3RP1b1/4Nkp1/K3Nr2/P2BP3/8/5Q2 w - - 0 1)

Savournin, Jacques

diagrammes, 1997

4rn1B/b6R/3RP1b1/4Nkp1/K3Nr2/P2BP3/8/5Q2

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf1
      • 2.Sd2#
      • 2.Sf2#
      • 2.Sc3#
      • 2.Sg3#
      • 2.Sc5#
    • 1...Rf2
      • 2.Sd2#
      • 2.Sxf2#
      • 2.Sc3#
      • 2.Sg3#
      • 2.Sc5#
      • 2.Qxf2#
    • 1...Rf3
      • 2.Sd2#
      • 2.Sf2#
      • 2.Sc3#
      • 2.Sg3#
      • 2.Sc5#
      • 2.Qxf3#
    • 1...Bf7
      • 2.Rxf7#
    • 1...Bd4
      • 2.Sd2#
      • 2.Sc3#
      • 2.Sg3#
      • 2.Sc5#
    • 1...g4
      • 2.Qxf4#
  • Tries
    • 1.Kb3?
      • threat
        • 2.Sd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
      • 1...Bc5
        • 2.Sd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sxc5#
      • 1...g4
        • 2.Qxf4#
      • 1...Rb8+!
    • 1.Ka5?
      • threat
        • 2.Sd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
      • 1...Bc5
        • 2.Sd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sxc5#
      • 1...g4
        • 2.Qxf4#
      • 1...Bb6+!
    • 1.Kb5?
      • threat
        • 2.Sd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
      • 1...Bc5
        • 2.Sd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sxc5#
      • 1...g4
        • 2.Qxf4#
      • 1...Rb8+!
    • 1.Sc4?
      • threat
        • 2.Sf6#
      • 1...Kg4
        • 2.Qh3#
      • 1...g4
        • 2.Qxf4#
      • 1...Rxe6!
    • 1.Rd4?
      • threat
        • 2.Sc5#
      • 1...Kxe6
        • 2.Sxg5#
      • 1...Bc5
        • 2.Sxc5#
      • 1...g4!
    • 1.Qh3+?
      • 1...Rg4
        • 2.Qxg4#
      • 1...g4!
    • 1.exf4?
      • threat
        • 2.Sd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sxg5#
        • 2.Sf6#
      • 1...gxf4
        • 2.Qh3#
      • 1...g4
        • 2.Sd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sg5#
        • 2.Sf6#
      • 1...Bc5
        • 2.Sd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sxc5#
        • 2.Sxg5#
        • 2.Sf6#
      • 1...Bf2!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Sg3#
      • 1...Kxe4
        • 2.Qd3#
      • 1...g4
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(d);N_GUARD::R(J),XB(d)
    • P(c);N_GUARD::QAR1(A),XR(a)
  • Tries
    • Try
      • K(E);N_SPINS(F),S_FLIGHT
      • Threat
        • DUALS(4)
      • Vars
        • P(c);N_GUARD::QAR1(A),XR(a)
      • Refutation
        • R(f);CHECK
    • Try
      • K(E);N_SPINS(F),P-FLIGHT
      • Threat
        • DUALS(4)
      • Vars
        • P(c);N_GUARD::QAR1(A),XR(a)
      • Refutation
        • B(e);CHECK
    • Try
      • K(E);N_SPINS(F),S_FLIGHT
      • Threat
        • DUALS(4)
      • Vars
        • P(c);N_GUARD::QAR1(A),XR(a)
      • Refutation
        • R(f);CHECK
    • Try
      • S(G);N_SPINS(F)
      • Threat
        • B(C)+S(F)
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT::QAB1(A)
        • P(c);N_GUARD::QAR1(A),XR(a)
      • Refutation
        • R(f);XP(I)
    • Try
      • R(H);N_SPINS(F)
      • Threat
        • B(C)+S(F)
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT,XP(I)::S(F),XP(c)
        • B(e);::B(C)+S(F),XB(e)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK,N_PINR(a)
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::QAB1(A),XR(a)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • P(D);N_SPINS(F),XR(a)
      • Threat
        • DUALS(6)
      • Vars
        • P(c);N_GUARD,P_SPINP(c),SBLOCK,XP(D)::QAB(A)
      • Refutation
        • B(e);
  • Actual
    • B(C);N_SPINS(F)
    • Threat
      • S(F)
    • Vars
      • K(b);N_SPINR(a),OGATEB,S_FLIGHT,XS(F)::QAB1(A)
      • P(c);N_GUARD::QAR1(A),XR(a)
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