MESON Chess Problem Database

Problem Display
PID: 222577 (8/2p5/B4Nn1/6p1/N2k1b2/2R5/7Q/2n2K2 w - - 0 1)

Hirsebrei, E

New Orleans Times-Democrat, 1883

8/2p5/B4Nn1/6p1/N2k1b2/2R5/7Q/2n2K2

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Qg1#
      • 2.Qf2#
  • Tries
    • 1.Qg1+?
      • 1...Be3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Qh1?
      • threat
        • 2.Qe4#
        • 2.Qd5#
      • 1...Sd3
        • 2.Qe4#
      • 1...Se7
        • 2.Qe4#
      • 1...c6
        • 2.Qe4#
      • 1...Ke5!
    • 1.Qb2?
      • threat
        • 2.Ra3#
        • 2.Rb3#
        • 2.Rd3#
        • 2.Rf3#
        • 2.Rg3#
        • 2.Rh3#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Bd2
        • 2.Rd3#
      • 1...Be3
        • 2.Rxc1#
        • 2.Rc2#
        • 2.Ra3#
        • 2.Rb3#
        • 2.Rd3#
        • 2.Rc5#
        • 2.Rc6#
        • 2.Rxc7#
      • 1...Bg3
        • 2.Ra3#
        • 2.Rb3#
        • 2.Rd3#
        • 2.Rf3#
        • 2.Rxg3#
      • 1...Sa2
        • 2.Rd3#
      • 1...Se2
        • 2.Rd3#
      • 1...Sb3
        • 2.Rxb3#
        • 2.Rd3#
        • 2.Rf3#
        • 2.Rg3#
        • 2.Rh3#
      • 1...Ke5!
    • 1.Qe2?
      • threat
        • 2.Rc4#
        • 2.Qe4#
      • 1...Be3
        • 2.Qxe3#
      • 1...Se5
        • 2.Qe4#
      • 1...Sxe2!
    • 1.Qf2+?
      • 1...Be3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Qg2?
      • threat
        • 2.Qe4#
        • 2.Qd5#
      • 1...Sd3
        • 2.Qe4#
      • 1...Se7
        • 2.Qe4#
      • 1...c6
        • 2.Qe4#
      • 1...Ke5!
  • Keys
    • 1.Re3!
      • threat
        • 2.Re4#
      • 1...Kxe3
        • 2.Qf2#
      • 1...Bxe3
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAB1(B),XB(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAR1(B)
        • S(e);::QAR1(B)
        • P(f);::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(6)
      • Vars
        • S(a);::QAB(B)+R(C),DCHECK,XS(a)
        • B(c);::QAB(B)+R(C),DCHECK
        • S(a);::QAB(B)+R(C),DCHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);N_GUARD::QAB1(B),XB(c)
        • S(e);::QAR1(B)
      • Refutation
        • S(a);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAB1(B),XB(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAR1(B)
        • S(e);::QAR1(B)
        • P(f);::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(C)::QAB1(B)
      • B(c);SBLOCK,XR(C)::QAB(B)
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