MESON Chess Problem Database

Problem Display
PID: 36361 (6B1/np3R2/3B1Kb1/8/1pPkp3/P4p2/2Q1P2R/6b1 w - - 0 1)

Degener, Udo

5th Prize, Hlas l'udu, 1994

6B1/np3R2/3B1Kb1/8/1pPkp3/P4p2/2Q1P2R/6b1

#2

9 + 8

3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Tries
    • 1.Bxb4?
      • threat
        • 2.Qc3#
      • 1...Ke3
        • 2.Qd2#
      • 1...e3
        • 2.Rd7#
      • 1...Sb5!
    • 1.Be5+?
      • 1...Ke3
        • 2.Qc1#
      • 1...Kc5!
    • 1.Rh4?
      • threat
        • 2.Qd3#
      • 1...Ke3
        • 2.Bc5#
      • 1...fxe2!
    • 1.Rc7?
      • threat
        • 2.Bc5#
        • 2.Qd2#
      • 1...Be3
        • 2.Bc5#
        • 2.Be5#
        • 2.Qb2#
      • 1...Sc6
        • 2.Qd2#
      • 1...e3
        • 2.Bc5#
        • 2.Be5#
      • 1...b6
        • 2.Qd2#
      • 1...Ke3!
    • 1.e3+?
      • 1...Kxe3
        • 2.Qd2#
      • 1...Bxe3!
    • 1.axb4?
      • threat
        • 2.Bc5#
      • 1...Ke3
        • 2.Qc3#
      • 1...b6!
  • Keys
    • 1.Re7!
      • threat
        • 2.Qd2#
      • 1...Ke3
        • 2.Qd3#
      • 1...Bf7
        • 2.Rxe4#
      • 1...Be3
        • 2.Qb2#
      • 1...e3
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);XP(c)
      • Threat
        • QAB1(A)
      • Vars
        • K(d);S_FLIGHT::QAB1(A)
        • P(e);SBLOCK::R(H)
      • Refutation
        • S(g);
    • Try
      • B(F);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(C);P_PINP(e)
      • Threat
        • QAR1(A)
      • Vars
        • K(d);N_SPINP(e),S_FLIGHT::B(F)
      • Refutation
        • P(b);XP(B)
    • Try
      • R(H);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);::QAR2(A)
        • P(h);::QAR2(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • P(B);CHECK
      • Vars
        • K(d);S_FLIGHT,XP(B)::QAB1(A)
      • Refutation
        • B(a);XP(B)
    • Try
      • P(D);XP(c)
      • Threat
        • B(F)
      • Vars
        • K(d);S_FLIGHT::QAR2(A)
      • Refutation
        • P(h);
  • Actual
    • R(H);
    • Threat
      • QAR2(A)
    • Vars
      • K(d);P_SPINP(e),S_FLIGHT::QAR1(A)
      • B(f);N_GUARD::R1(H),XP(e)
      • B(a);SBLOCK::QAB(A)
      • P(e);::QAB(A)
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